CN204236469U - For the side wall of hopper car and the connection structure of central sill - Google Patents
For the side wall of hopper car and the connection structure of central sill Download PDFInfo
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- CN204236469U CN204236469U CN201420739220.1U CN201420739220U CN204236469U CN 204236469 U CN204236469 U CN 204236469U CN 201420739220 U CN201420739220 U CN 201420739220U CN 204236469 U CN204236469 U CN 204236469U
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- side wall
- central sill
- connecting panel
- hopper car
- connection structure
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Abstract
The utility model discloses a kind of for the side wall of hopper car and the connection structure of central sill, comprise central sill, side wall, upper hopper back and lower funnel back, the two ends of upper hopper back and lower funnel back are welded on the medial surface of both walls respectively, upper hopper back has the opening for interspersed central sill, central sill interts in opening, the oral area of opening is provided with the hush panel for being encapsulated in by central sill in opening, the side shrouding for filling chink is respectively equipped with between the two sides of central sill and opening, the height on lower funnel back top is higher than the height of middle soffit, in the correspondence of lower funnel back top, the position of soffit has the U-shaped mouth for shelving middle soffit, middle soffit is shelved in U-shaped mouth, side wall lower end is provided with the flange for shelving lower funnel back, side wall medial surface is longitudinally at least provided with about two strength beams arranged successively along side wall, and be provided with reinforcement connecting panel between adjacent two strength beams, the arc radius of side wall is more than 5m.Be applicable to railway hopper car.
Description
Technical field
The utility model relates to railway hopper car field, refers to a kind of for the side wall of hopper car and the connection structure of central sill particularly.
Background technology
At present, along with the fast development of railway hopper car technology, packaging efficiency, heavy duty and large volume have become the important development direction of railway hopper car, and the packaging efficiency of railway hopper car, heavy duty and large volume depend on the connection structure of side wall and central sill to a great extent.The connection structure of existing side wall and central sill generally comprises central sill, side wall, upper hopper back and lower funnel back, the two ends of upper hopper back and lower funnel back are welded on the medial surface of both walls respectively, upper hopper back offers the opening for interspersed central sill, central sill interts in opening, the two sides of central sill are directly welded with the opening part of upper hopper back, the underrun hush panel of central sill is encapsulated in opening, and the height on lower funnel back top is far below the height of middle soffit.Following problem is there is in the side wall of this form and the connection structure of central sill in practice of construction with when using:
1, because the two sides of central sill are directly welded with the opening part of upper hopper back, so the dimension precision requirement of opening on upper hopper back is higher, assembly precision also requires higher, and therefore its technology difficulty is comparatively large, thus reduces packaging efficiency;
2, because the height on lower funnel back top is far below the height of middle soffit, without any annexation between the following funnel back of institute and central sill, like this, greatly reduce the intensity of car load, thus reduce the load-carrying capacity of railway hopper car;
3, because side wall forms by large-area flat-plate is bending, so its intensity is lower, therefore, it seriously constrains the load-carrying capacity of railway hopper car, and in use, side wall is very easy to deform;
4, the intensity due to side wall is lower, think ensure its basic intensity, can only by the arc radius of side wall design within 4m, greatly reduce the volume of railway hopper car like this, do not utilize railway clearance fully.
Summary of the invention
The purpose of this utility model is the deficiency existed to solve above-mentioned background technology, proposes that a kind of packaging efficiency is high, intensity is high and capacious for the side wall of hopper car and the connection structure of central sill.
For achieving the above object, a kind of for the side wall of hopper car and the connection structure of central sill designed by the utility model, comprise central sill, side wall, upper hopper back and lower funnel back, the two ends of described upper hopper back and lower funnel back are welded on the medial surface of both walls respectively, described upper hopper back offers the opening for interspersed described central sill, described central sill interts in described opening, the oral area of described opening is provided with the hush panel for being encapsulated in by described central sill in described opening, the side shrouding for filling chink is respectively equipped with between the two sides of described central sill and described opening, the height on described lower funnel back top is higher than the height of described middle soffit, the position of corresponding described middle soffit, described lower funnel back top has the U-shaped mouth for shelving described middle soffit, described middle soffit is shelved in described U-shaped mouth, described side wall lower end is provided with the flange for shelving described lower funnel back, the medial surface of described side wall is longitudinally at least provided with about two strength beams arranged successively along described side wall, and be provided with reinforcement connecting panel between adjacent two described strength beams, the arc radius of described side wall is more than 5m.By filling up the gap of two sides respectively and between opening of central sill with side shrouding, like this, the dimensional accuracy of opening can reduce greatly, thus reduces technology difficulty, and then improves packaging efficiency; Simultaneously, the height on lower funnel back top is designed to higher than the height of middle soffit, and the U-shaped mouth for soffit in shelving is offered in the position of soffit in the correspondence of lower funnel back top, like this, central sill can be shelved on lower funnel back, thus improve the intensity of car load, and then improve the load-carrying capacity of railway hopper car; And, by adding flange in side wall lower end, for supporting lower funnel back, thus further increasing the intensity of car load, and then improve the load-carrying capacity of railway hopper car; Again and, by adding strength beam on the medial surface of side wall, improve the intensity of side wall, thus improve the load-carrying capacity of railway hopper car; And reinforcement connecting panel is added between adjacent two strength beams, adjacent two strength beams are just connected by such reinforcement connecting panel, thus further increasing the intensity of side wall, can effectively prevent side wall from deforming; Finally, under the prerequisite that improve side wall intensity, by adopting the means of the arc radius strengthening side wall, reach the object of enlarging volume.
In such scheme, described side shrouding is the bending structure matched with described middle beam sides.
In such scheme, between described middle soffit and described U-shaped mouth, be provided with the U-shaped connecting panel for filling chink.Connect central sill and lower funnel back by U-shaped connecting panel, make central sill and lower funnel back form integral structure, greatly increase the intensity of car load like this, thus improve the load-carrying capacity of railway hopper car.
In such scheme, the quantity of described U-shaped connecting panel is two pieces, and two pieces of described U-shaped connecting panels are arranged on the two sides of described lower funnel back, and the upper end of two pieces of described U-shaped connecting panels is connected.By arranging one piece of U-shaped connecting panel respectively in the both sides of lower funnel back, and the upper end of two pieces of U-shaped connecting panels being connected to form integral structure, further increasing the intensity of car load like this, thus improve the load-carrying capacity of railway hopper car.
In such scheme, between described upper hopper back and described side wall, support and connection have epimere, the side of described epimere with welded the side wall of strength beam with reinforcement connecting panel and be connected, described reinforcement connecting panel is arranged in the position of corresponding described epimere on described side wall.By reinforcement connecting panel being arranged in the position of corresponding described epimere on described side wall, adjacent two strength beams are just connected with epimere by such reinforcement connecting panel, thus further increasing the intensity of side wall.
In such scheme, described strength beam is angle steel, channel-section steel, square tube or pipe, and the position that described strength beam and described epimere join is provided with shrouding, and described strength beam is connected with described epimere by described shrouding.By adopting the technique adding shrouding, greatly can reduce the precision of epimere side upper shed size like this, thus reducing technology difficulty, improve packaging efficiency.
In such scheme, described reinforcement connecting panel is the slab construction of band radian, and the radian of described reinforcement connecting panel is consistent with the radian of described side wall.
In such scheme, the two ends up and down of described reinforcement connecting panel are connected with adjacent two described strength beams respectively, and the lateral surface of described reinforcement connecting panel is connected with the medial surface of described side wall, and the medial surface of described reinforcement connecting panel is connected with the side of described epimere.By also being coupled together by the medial surface of reinforcement connecting panel and side wall, like this, side wall, epimere and strength beam have just been linked to be integrative-structure by reinforcement connecting panel, thus further improve the intensity of this sidewall structure.
In such scheme, the part that described side wall upper end connects top chord is linear portion.By being linear portion by the partial design of side wall upper end connection top chord, so just first top chord can being welded on after on side wall and carrying out bending and brake forming again, thus reducing technology difficulty.
In such scheme, for arc transition is connected between described linear portion with described side wall lower end arc section.By connecting linear portion and side wall lower end arc section by arc transition, decrease stress and concentrate, improve intensity.
The utility model has the advantage of:
1, by filling up the gap of two sides respectively and between opening of central sill with side shrouding, like this, the dimensional accuracy of opening can reduce greatly, thus reduces technology difficulty, and then improves packaging efficiency;
2, the height on lower funnel back top is designed to higher than the height of middle soffit, and the U-shaped mouth for soffit in shelving is offered in the position of soffit in the correspondence of lower funnel back top, like this, central sill can be shelved on lower funnel back, thus improve the intensity of car load, and then improve the load-carrying capacity of railway hopper car;
3, by adding flange in side wall lower end, for supporting lower funnel back, thus further increasing the intensity of car load, and then improve the load-carrying capacity of railway hopper car;
4, by adding strength beam on the medial surface of side wall, improve the intensity of side wall, thus improve the load-carrying capacity of railway hopper car;
5, between adjacent two strength beams, add reinforcement connecting panel, adjacent two strength beams are just connected by such reinforcement connecting panel, thus further increasing the intensity of side wall, can effectively prevent side wall from deforming;
6, under the prerequisite that improve side wall intensity, by adopting the means of the arc radius strengthening side wall, the object of enlarging volume is reached;
7, connect central sill and lower funnel back by U-shaped connecting panel, make central sill and lower funnel back form integral structure, greatly increase the intensity of car load like this, thus improve the load-carrying capacity of railway hopper car;
8, by arranging one piece of U-shaped connecting panel respectively in the both sides of lower funnel back, and the upper end of two pieces of U-shaped connecting panels being connected to form integral structure, further increasing the intensity of car load like this, thus improve the load-carrying capacity of railway hopper car;
9, by reinforcement connecting panel being arranged in the position of corresponding described epimere on described side wall, adjacent two strength beams are just connected with epimere by such reinforcement connecting panel, thus further increasing the intensity of side wall;
10, by adopting the technique adding shrouding, greatly can reduce the precision of epimere side upper shed size like this, thus reducing technology difficulty, improve packaging efficiency;
11, by also being coupled together by the medial surface of reinforcement connecting panel and side wall, like this, side wall, epimere and strength beam have just been linked to be integrative-structure by reinforcement connecting panel, thus further improve the intensity of this sidewall structure;
12, by being linear portion by the partial design of side wall upper end connection top chord, so just first top chord can be welded on after on side wall and carry out bending and brake forming again, thus reducing technology difficulty;
13, by connecting linear portion and side wall lower end arc section by arc transition, decreasing stress and concentrating, improve intensity.
Accompanying drawing explanation
Fig. 1 is the structural representation of utility model;
Fig. 2 is the structural representation after Fig. 1 removes hush panel, side shrouding and reinforcement connecting panel;
Fig. 3 is the A portion partial enlargement structural representation of Fig. 2;
Fig. 4 is the main TV structure schematic diagram of Fig. 1;
Fig. 5 is the side-looking structural representation of Fig. 1;
Fig. 6 is the B portion partial enlargement structural representation of Fig. 5;
Fig. 7 is the main TV structure schematic diagram of side shrouding;
Fig. 8 is the side-looking structural representation of side shrouding;
Fig. 9 is the plan structure schematic diagram of side shrouding;
Figure 10 is the stravismus structural representation of side shrouding;
Figure 11 is another stravismus structural representation of side shrouding;
Figure 12 is the structural representation of U-shaped connecting panel;
Figure 13 is the structural representation of side wall;
Figure 14 is the structural representation at another visual angle of side wall;
Figure 15 is the main TV structure schematic diagram of Figure 13;
Figure 16 is the side-looking structural representation of Figure 13;
Figure 17 is the C portion partial enlargement structural representation of Figure 16.
In figure: central sill 1, side wall 2, flange 2a, upper hopper back 3, opening 3a, lower funnel back 4, U-shaped mouth 4a, hush panel 5, side shrouding 6, strength beam 7, reinforcement connecting panel 8, U-shaped connecting panel 9, epimere 10, shrouding 11, top chord 12.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in Figure 1 a kind of for the side wall of hopper car and the connection structure of central sill, comprise central sill 1, side wall 2, upper hopper back 3 and lower funnel back 4, the two ends of described upper hopper back 3 and lower funnel back 4 are welded on the medial surface of both walls 2 respectively, described upper hopper back 3 offers the opening 3a for interspersed described central sill 1, described central sill 1 interts in described opening 3a, the oral area of described opening 3a is provided with the hush panel 5 for being encapsulated in by described central sill 1 in described opening 3a, the side shrouding 6 for filling chink is respectively equipped with between the two sides of described central sill 1 and described opening 3a, the height on described lower funnel back 4 top is higher than the height of described central sill 1 bottom surface, the position of corresponding described central sill 1 bottom surface, described lower funnel back 4 top has the U-shaped mouth 4a for shelving described central sill 1 bottom surface, described central sill 1 bottom surface is shelved in described U-shaped mouth 4a, described side wall 2 lower end is provided with the flange 2a for shelving described lower funnel back 4, and the bottom at described lower funnel back 4 two ends is shelved on described flange 2a respectively, the medial surface of described side wall 2 is longitudinally at least provided with about two strength beams arranged successively 7 along described side wall 2, and be provided with reinforcement connecting panel 8 between adjacent two described strength beams 7, the arc radius of described side wall 2 is more than 5m.By filling up the gap of two sides respectively and between opening 3a of central sill 1 with side shrouding 6, like this, the dimensional accuracy of opening 3a can reduce greatly, thus reduces technology difficulty, and then improves packaging efficiency; Simultaneously, the height on lower funnel back 4 top is designed to higher than the height of central sill 1 bottom surface, and the U-shaped mouth 4a for shelving central sill 1 bottom surface is offered in the position of corresponding central sill 1 bottom surface on lower funnel back 4 top, like this, central sill 1 can be shelved on lower funnel back 4, thus improve the intensity of car load, and then improve the load-carrying capacity of railway hopper car; And, by adding flange 2a in side wall 2 lower end, for supporting lower funnel back 4, thus further increasing the intensity of car load, and then improve the load-carrying capacity of railway hopper car; Again and, by adding strength beam 7 on the medial surface of side wall 2, improve the intensity of side wall 2, thus improve the load-carrying capacity of railway hopper car; And reinforcement connecting panel 8 is added between adjacent two strength beams 7, adjacent two strength beams 7 are just connected by such reinforcement connecting panel 8, thus further increasing the intensity of side wall 2, can effectively prevent side wall 2 from deforming; Finally, under the prerequisite that improve side wall 2 intensity, by adopting the means of the arc radius strengthening side wall 2, reach the object of enlarging volume.
Above-mentioned side shrouding 6 is the bending structure matched with described central sill 1 side.Certainly, also side shrouding 6 can be designed to by the splicing construction of two pieces of plate weldings.
The U-shaped connecting panel 9 for filling chink is provided with between above-mentioned central sill 1 bottom surface and described U-shaped mouth 4a.Connect central sill 1 and lower funnel back 4 by U-shaped connecting panel 9, make central sill 1 and lower funnel back 4 form integral structure, greatly increase the intensity of car load like this, thus improve the load-carrying capacity of railway hopper car.The quantity of described U-shaped connecting panel 9 is two pieces, and two pieces of described U-shaped connecting panels 9 are arranged on the two sides of described lower funnel back 4, and the upper end of two pieces of described U-shaped connecting panels 9 is connected.By arranging one piece of U-shaped connecting panel 9 respectively in the both sides of lower funnel back 4, and the upper end of two pieces of U-shaped connecting panels 9 being connected to form integral structure, further increasing the intensity of car load like this, thus improve the load-carrying capacity of railway hopper car.
Between above-mentioned upper hopper back 3 and described side wall 2, support and connection have epimere 10, the side of described epimere 10 with welded strength beam 7 and be connected with the side wall 2 of reinforcement connecting panel 8, described reinforcement connecting panel 8 is arranged in the position of corresponding described epimere 10 on described side wall 2.By reinforcement connecting panel 8 being arranged in the position of corresponding described epimere 10 on described side wall 2, adjacent two strength beams 7 are just connected with epimere 10 by such reinforcement connecting panel 8, thus further increasing the intensity of side wall 2.Described strength beam 7 is angle steel, channel-section steel, square tube or pipe, and the position that described strength beam 7 and described epimere 10 join is provided with shrouding 11, and described strength beam 7 is connected with described epimere 10 by described shrouding 11.By adopting the technique adding shrouding 11, greatly can reduce the precision of epimere 10 side upper shed size like this, thus reducing technology difficulty, improve packaging efficiency.Described reinforcement connecting panel 8 is the slab construction of band radian, and the radian of described reinforcement connecting panel 8 is consistent with the radian of described side wall 2.The two ends up and down of described reinforcement connecting panel 8 are connected with adjacent two described strength beams 7 respectively, and the lateral surface of described reinforcement connecting panel 8 is connected with the medial surface of described side wall 2, and the medial surface of described reinforcement connecting panel 8 is connected with the side of described epimere 10.By also being coupled together by the medial surface of reinforcement connecting panel 8 with side wall 2, like this, side wall 2, epimere 10 and strength beam 7 have just been linked to be integrative-structure by reinforcement connecting panel 8, thus further improve the intensity of this sidewall structure.
The part that above-mentioned side wall 2 upper end connects top chord 12 is linear portion.By being linear portion by the partial design of side wall 2 upper end connection top chord 12, so just first top chord 12 can being welded on after on side wall 2 and carrying out bending and brake forming again, thus reducing technology difficulty.And prior art is first bent by side wall 2, and then side wall 2 upper end welding top chord 12 upon bending, but due to now side wall 2 be warp architecture, so welding difficulty is comparatively greatly and weld strength is lower.For arc transition is connected between described linear portion with described side wall 2 lower end arc section.By connecting linear portion and side wall 2 lower end arc section by arc transition, decrease stress and concentrate, improve intensity.The arc radius of this junction is 60cm.
The utility model is by filling up the gap of two sides respectively and between opening 3a of central sill 1 with side shrouding 6, like this, the dimensional accuracy of opening 3a can reduce greatly, thus reduces technology difficulty, and then improves packaging efficiency; The height on lower funnel back 4 top is designed to higher than the height of central sill 1 bottom surface, and the U-shaped mouth 4a for shelving central sill 1 bottom surface is offered in the position of corresponding central sill 1 bottom surface on lower funnel back 4 top, like this, central sill 1 can be shelved on lower funnel back 4, thus improve the intensity of car load, and then improve the load-carrying capacity of railway hopper car; By adding flange 2a in side wall 2 lower end, for supporting lower funnel back 4, thus further increasing the intensity of car load, and then improve the load-carrying capacity of railway hopper car; By adding strength beam 7 on the medial surface of side wall 2, improve the intensity of side wall 2, thus improve the load-carrying capacity of railway hopper car; Between adjacent two strength beams 7, add reinforcement connecting panel 8, adjacent two strength beams 7 are just connected by such reinforcement connecting panel 8, thus further increasing the intensity of side wall 2, can effectively prevent side wall 2 from deforming; Under the prerequisite that improve side wall 2 intensity, by adopting the means of the arc radius strengthening side wall 2, reach the object of enlarging volume; Connect central sill 1 and lower funnel back 4 by U-shaped connecting panel 9, make central sill 1 and lower funnel back 4 form integral structure, greatly increase the intensity of car load like this, thus improve the load-carrying capacity of railway hopper car; By arranging one piece of U-shaped connecting panel 9 respectively in the both sides of lower funnel back 4, and the upper end of two pieces of U-shaped connecting panels 9 being connected to form integral structure, further increasing the intensity of car load like this, thus improve the load-carrying capacity of railway hopper car; By reinforcement connecting panel 8 being arranged in the position of corresponding described epimere 10 on described side wall 2, adjacent two strength beams 7 are just connected with epimere 10 by such reinforcement connecting panel 8, thus further increasing the intensity of side wall 2; By adopting the technique adding shrouding 11, greatly can reduce the precision of epimere 10 side upper shed size like this, thus reducing technology difficulty, improve packaging efficiency; By also being coupled together by the medial surface of reinforcement connecting panel 8 with side wall 2, like this, side wall 2, epimere 10 and strength beam 7 have just been linked to be integrative-structure by reinforcement connecting panel 8, thus further improve the intensity of this sidewall structure; By being linear portion by the partial design of side wall 2 upper end connection top chord 12, so just first top chord 12 can being welded on after on side wall 2 and carrying out bending and brake forming again, thus reducing technology difficulty; By connecting linear portion and side wall 2 lower end arc section by arc transition, decrease stress and concentrate, improve intensity.
Claims (10)
1. one kind for the side wall of hopper car and the connection structure of central sill, comprise central sill (1), side wall (2), upper hopper back (3) and lower funnel back (4), the two ends of described upper hopper back (3) and lower funnel back (4) are welded on the medial surface of both walls (2) respectively, described upper hopper back (3) offers the opening (3a) for interspersed described central sill (1), described central sill (1) interts in described opening (3a), the oral area of described opening (3a) is provided with the hush panel (5) for being encapsulated in by described central sill (1) in described opening (3a), it is characterized in that: between the two sides of described central sill (1) and described opening (3a), be respectively equipped with the side shrouding (6) for filling chink, the height on described lower funnel back (4) top is higher than the height of described central sill (1) bottom surface, the position of corresponding described central sill (1) bottom surface, described lower funnel back (4) top has the U-shaped mouth (4a) for shelving described central sill (1) bottom surface, described central sill (1) bottom surface is shelved in described U-shaped mouth (4a), described side wall (2) lower end is provided with the flange (2a) for shelving described lower funnel back (4), the medial surface of described side wall (2) is longitudinally at least provided with about two strength beams arranged successively (7) along described side wall (2), be provided with reinforcement connecting panel (8) between adjacent two described strength beams (7), the arc radius of described side wall (2) is more than 5m.
2. according to claim 1 for the side wall of hopper car and the connection structure of central sill, it is characterized in that: described side shrouding (6) is the bending structure matched with described central sill (1) side.
3. according to claim 2 for the side wall of hopper car and the connection structure of central sill, it is characterized in that: between described central sill (1) bottom surface and described U-shaped mouth (4a), be provided with the U-shaped connecting panel (9) for filling chink.
4. according to claim 3 for the side wall of hopper car and the connection structure of central sill, it is characterized in that: the quantity of described U-shaped connecting panel (9) is two pieces, two pieces of described U-shaped connecting panels (9) are arranged on the two sides of described lower funnel back (4), and the upper end of two pieces of described U-shaped connecting panels (9) is connected.
5. according to claim 1 for the side wall of hopper car and the connection structure of central sill, it is characterized in that: between described upper hopper back (3) and described side wall (2), support and connection have epimere (10), the side of described epimere (10) with welded strength beam (7) and be connected with the side wall (2) of reinforcement connecting panel (8), described reinforcement connecting panel (8) is arranged in the position of the upper corresponding described epimere (10) of described side wall (2).
6. according to claim 5 for the side wall of hopper car and the connection structure of central sill, it is characterized in that: described strength beam (7) is angle steel, channel-section steel, square tube or pipe, the position that described strength beam (7) and described epimere (10) join is provided with shrouding (11), and described strength beam (7) is connected with described epimere (10) by described shrouding (11).
7. according to claim 5 for the side wall of hopper car and the connection structure of central sill, it is characterized in that: described reinforcement connecting panel (8) is the slab construction of band radian, and the radian of described reinforcement connecting panel (8) is consistent with the radian of described side wall (2).
8. according to claim 5 for the side wall of hopper car and the connection structure of central sill, it is characterized in that: the two ends up and down of described reinforcement connecting panel (8) are connected with adjacent two described strength beams (7) respectively, the lateral surface of described reinforcement connecting panel (8) is connected with the medial surface of described side wall (2), and the medial surface of described reinforcement connecting panel (8) is connected with the side of described epimere (10).
9. according to claim 1 for the side wall of hopper car and the connection structure of central sill, it is characterized in that: the part that described side wall (2) upper end connects top chord (12) is linear portion.
10. according to claim 9 for the side wall of hopper car and the connection structure of central sill, it is characterized in that: for arc transition is connected between described linear portion with described side wall (2) lower end arc section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739220.1U CN204236469U (en) | 2014-11-28 | 2014-11-28 | For the side wall of hopper car and the connection structure of central sill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739220.1U CN204236469U (en) | 2014-11-28 | 2014-11-28 | For the side wall of hopper car and the connection structure of central sill |
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| CN204236469U true CN204236469U (en) | 2015-04-01 |
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| CN201420739220.1U Withdrawn - After Issue CN204236469U (en) | 2014-11-28 | 2014-11-28 | For the side wall of hopper car and the connection structure of central sill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401337A (en) * | 2014-11-28 | 2015-03-11 | 南车长江车辆有限公司 | Connecting structure for lateral wall and center sill of hopper wagon |
-
2014
- 2014-11-28 CN CN201420739220.1U patent/CN204236469U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401337A (en) * | 2014-11-28 | 2015-03-11 | 南车长江车辆有限公司 | Connecting structure for lateral wall and center sill of hopper wagon |
| CN104401337B (en) * | 2014-11-28 | 2017-02-22 | 中车长江车辆有限公司 | Connecting structure for lateral wall and center sill of hopper wagon |
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Granted publication date: 20150401 Effective date of abandoning: 20170222 |
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