Assembly welding device for gooseneck type traction beam of railway tank car

Abstract

The utility model relates to a welding auxiliary device, in particular to a welding device for a gooseneck type traction beam of a railway tank car, and aims to solve the problems that an existing traction beam welding device cannot be matched with the gooseneck type traction beam, is complex in structure and is not convenient to move. The device comprises two first supporting plates, a plurality of second connecting plates, a first positioning plate, a third positioning plate, a fourth positioning plate and a second positioning plate. The two first supporting plates are vertically arranged and are connected with each other through a connecting assembly; the second connecting plate is L-shaped; the first positioning plate and the fourth positioning plate are horizontally arranged and located at the upper ends of the two first supporting plates respectively, the third positioning plate is obliquely arranged at the upper end of the connecting assembly, the upper edge of one end of the third positioning plate is flush with the upper edge of the first positioning plate, and the upper edge of the other end of the third positioning plate is flush with the upper edge of the fourth positioning plate. The upper surfaces of the first positioning plate, the third positioning plate and the fourth positioning plate are used for positioning and supporting the lower cover plate; the second positioning plate is used for positioning the web.

Description

Technical Field

[0001] This utility model relates to a welding auxiliary device, specifically a welding device for a gooseneck traction beam of a railway tank car. Background Technology

[0002] Railway tank cars are a type of transport vehicle primarily used for long-distance transport of liquid products. Based on their tank structure, railway tank cars can be divided into those with a center beam and those without. In tank cars with a center beam, the tank body is connected to the entire underframe via a saddle, while in tank cars without a center beam, the tank body is assembled and connected to two traction bolsters on the car. Both types of tank cars are equipped with traction beams.

[0003] See Figure 4 The traction beam typically includes two parallel webs 9, and components such as a front follower plate seat, a rear follower plate seat, and a partition plate welded between the two webs 9. Each web 9 is also connected to a lower cover plate 10 for fixing the traction beam, and the lower cover plate 10 is usually welded to the lower end of the traction beam web.

[0004] Normally, the lower surface of the lower cover plate 10 is a plane, see [reference]. Figure 4 This design facilitates the positioning, assembly, and welding of the lower cover plate 10 and the web plate 9. However, some railway tank cars, to ensure the coupler height, use a different design for their traction beams. Figure 5 The gooseneck traction beam shown has a lower cover plate 10 with a bent surface, including a first plate, a second plate and a third plate in sequence, with the first plate and the second plate arranged in parallel.

[0005] To ensure the stability of the traction beam, the perpendicularity of the connection between the lower cover plate 10 and the web plate 9 is crucial. Chinese Patent CN115283916A discloses a welding device and method for railway tank cars. The device, used for welding the lower cover plate and web plate of the traction beam, specifically includes a positioning mechanism, a flipping mechanism, and a rotating component. The positioning mechanism includes a web plate positioning plate, a cover plate positioning plate, and at least two connecting plates. Each connecting plate has a right-angle notch, forming a first and second inner wall that are perpendicular to each other. One side of the web plate positioning plate is the web plate positioning surface, and the other side is the web plate connecting surface. The web plate connecting surface connects to the first inner wall of each right-angle notch. One side of the cover plate positioning plate is the cover plate positioning surface, and the other side is the cover plate connecting surface. The cover plate connecting surface connects to the second inner wall of each right-angle notch. A welding gap is provided between adjacent ends of the web plate positioning plate and the cover plate positioning plate. The rotating component is fixedly connected to the connecting plate and rotatably connected to the flipping mechanism.

[0006] However, the device described in this patent can only be adapted to cases where the lower cover plate of the traction beam is flat, and it includes a displacement mechanism (bearing seat); it cannot be adapted to gooseneck traction beams, and its structure is complex and not conducive to relocation. Utility Model Content

[0007] The purpose of this invention is to solve the problems that existing traction beam welding devices cannot be adapted to gooseneck traction beams and have complex structures that are not conducive to relocation, and to provide a welding device for gooseneck traction beams of railway tank cars.

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0009] A welding device for a gooseneck traction beam of a railway tank car, the gooseneck traction beam comprising two parallel webs, lower cover plates respectively disposed at the lower outer ends of the two webs, and a front follower plate seat, a rear follower plate seat, and a partition plate disposed between the two webs, the lower cover plate comprising a first plate α, a second plate β, and a third plate γ connected in sequence, the first plate α and the third plate γ being parallel, the intersecting edge of the first plate α and the second plate β being defined as L1, the intersecting edge of the second plate β and the third plate γ being defined as L2, the plane angles θ1 and θ2 of the dihedral angles α-L1-β and β-L2-γ being obtuse angles, the device being particularly characterized by:

[0010] It includes two first support plates, multiple second connecting plates, and a first positioning plate, a third positioning plate, a fourth positioning plate, and a second positioning plate;

[0011] Both of the first support plates are vertically arranged and connected to each other by connecting components;

[0012] The second connecting plate is L-shaped, comprising a vertical section and a horizontal section that are perpendicular to each other;

[0013] The first and fourth positioning plates are both horizontally positioned and located above the two first support plates respectively. The third positioning plate is inclinedly positioned above the connecting assembly. The upper edge of one end of the third positioning plate is flush with the upper edge of the first positioning plate, and the upper edge of the other end is flush with the upper edge of the fourth positioning plate. The intersecting edge of the first and third positioning plates is defined as L3, and the intersecting edge of the third and fourth positioning plates is defined as L4. L3 is parallel to L4. The upper surfaces of the first, third, and fourth positioning plates are adapted to the lower edges of the first plate α, the second plate β, and the third plate γ of the lower cover plate, respectively, for positioning and supporting the lower cover plate.

[0014] The second positioning plate is vertically positioned above one side of the first, third, and fourth positioning plates, with L3 and L4 perpendicular to the second positioning plate. A gap is provided between the bottom surface of the second positioning plate and the upper surfaces of the first, third, and fourth positioning plates. The vertical sections of the multiple second connecting plates are connected to the outer side of the second positioning plate, and the horizontal sections are connected to the lower surface of the corresponding first or fourth positioning plate. The second positioning plate is used to position the web plate.

[0015] Furthermore, the connecting assembly includes a first connecting plate that is connected to the inner side of the two first support plates respectively, and two second support plates of different heights disposed on the upper surface of the first connecting plate. Both second support plates are connected to the lower surface of the third positioning plate; wherein the second support plate closer to the first positioning plate is higher than the second support plate closer to the fourth positioning plate.

[0016] Furthermore, the lower edge of the second positioning plate is parallel to the upper edge of the assembly of the first, third, and fourth positioning plates.

[0017] Furthermore, the number of the second connecting plates is eight.

[0018] Furthermore, the cross-section of each of the first support plates is I-shaped.

[0019] Furthermore, each of the second support plates has a U-shaped cross-section, and the opening of the U-shape faces the fourth positioning plate.

[0020] Furthermore, the cross-section of the first connecting plate is U-shaped, with the opening of the U-shape facing downwards.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. The welding device for the gooseneck traction beam of the railway tank car provided by this utility model makes the web plate of the gooseneck traction beam and its lower cover plate on the second positioning plate and the first positioning plate, the third positioning plate and the fourth positioning plate reliably attached and fixed. After clamping, the relative position of the web plate and the lower cover plate is fixed, which greatly reduces the welding error.

[0023] 2. The welding device for the gooseneck traction beam of railway tank cars provided by this utility model has a simple structure, is easy to assemble, disassemble and move, and is compatible with gooseneck traction beams. It solves the problem that existing welding devices can only be used for traction beams with a flat lower surface of the cover plate, thus broadening the scope of application.

[0024] 3. The welding device for the gooseneck traction beam of the railway tank car provided by this utility model has an L-shaped second connecting plate, which ensures the perpendicularity between the second positioning plate and the other three plates (the first positioning plate, the third positioning plate and the fourth positioning plate), thereby also ensuring the perpendicularity between the web plate and the lower cover plate of the gooseneck traction beam. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the forward structure of an embodiment of the gooseneck traction beam welding device for railway tank cars of this utility model.

[0026] Figure 2 This is a rear structural schematic diagram of an embodiment of the gooseneck traction beam welding device for railway tank cars of this utility model.

[0027] Figure 3 This is a side structural schematic diagram of an embodiment of the gooseneck traction beam welding device for railway tank cars of this utility model;

[0028] Figure 4 This is a schematic diagram of the existing traction beam.

[0029] Figure 5 This is a schematic diagram of the existing gooseneck traction beam.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-First support plate, 2-First connecting plate, 3-Second support plate, 4-First positioning plate, 5-Third positioning plate, 6-Fourth positioning plate, 7-Second positioning plate, 8-Second connecting plate, 9-Body plate, 10-Lower cover plate. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] First, the structure of the gooseneck traction beam will be explained; see [link to relevant documentation]. Figure 5 It includes two parallel webs 9, a lower cover plate 10 respectively disposed at the lower outer side of the two webs 9, and a front follower plate seat, a rear follower plate seat and a partition plate disposed between the two webs 9. The lower cover plate 10 includes a first plate α, a second plate β and a third plate γ connected in sequence, and the first plate α and the third plate γ are parallel. The intersection edge of the first plate α and the second plate β is defined as L1, and the intersection edge of the second plate β and the third plate γ is defined as L2. The plane angles θ1 and θ2 of the dihedral angles α-L1-β and β-L2-γ are both obtuse angles.

[0034] A welding device for gooseneck traction beams of railway tank cars, see [link / reference]. Figures 1 to 3 It includes two first support plates 1, eight second connecting plates 8, and a first positioning plate 4, a third positioning plate 5, a fourth positioning plate 6, and a second positioning plate 7.

[0035] Both first support plates 1 are vertically arranged and connected to each other by a connecting component. The connecting component includes a first connecting plate 2 that is connected to the inner side of the two first support plates 1 respectively, and two second support plates 3 with different heights disposed on the upper surface of the first connecting plate 2. Both second support plates 3 are connected to the lower surface of the third positioning plate 5. The second support plate 3 closer to the first positioning plate 4 is higher than the second support plate 3 closer to the fourth positioning plate 6.

[0036] The second connecting plate 8 is L-shaped, consisting of a vertical section and a horizontal section that are perpendicular to each other;

[0037] The first positioning plate 4 and the fourth positioning plate 6 are both horizontally arranged and located at the upper ends of the two first support plates 1 respectively. The third positioning plate 5 is inclinedly arranged at the upper end of the connecting assembly. The upper edge of one end of the third positioning plate 5 is flush with the upper edge of the first positioning plate 4, and the upper edge of the other end is flush with the upper edge of the fourth positioning plate 6. The intersecting edge of the first positioning plate 4 and the third positioning plate 5 is defined as L3, and the intersecting edge of the third positioning plate 5 and the fourth positioning plate 6 is defined as L4. L3 is parallel to L4. The upper surfaces of the first positioning plate 4, the third positioning plate 5 and the fourth positioning plate 6 are adapted to the lower edges of the first plate α, the second plate β and the third plate γ of the lower cover plate 10 respectively, for positioning and supporting the lower cover plate 10.

[0038] The second positioning plate 7 is vertically positioned above one side of the first positioning plate 4, the third positioning plate 5, and the fourth positioning plate 6, with L3 and L4 perpendicular to the second positioning plate 7. A gap is provided between the bottom surface of the second positioning plate 7 and the upper surfaces of the first positioning plate 4, the third positioning plate 5, and the fourth positioning plate 6. The vertical sections of the eight second connecting plates 8 are connected to the outer surfaces of the second positioning plate 7, and the horizontal sections are connected to the lower surfaces of the corresponding first positioning plate 4 or fourth positioning plate 6. The second positioning plate 7 is used to position the web plate 9. The lower edge of the second positioning plate 7 is parallel to the upper edge of the assembly of the first positioning plate 4, the third positioning plate 5, and the fourth positioning plate 6.

[0039] To increase connection strength, each first support plate 1 has an I-shaped cross-section; each second support plate 3 has a U-shaped cross-section, with the opening of the U-shape facing the fourth positioning plate 6; and each first connecting plate 2 has a U-shaped cross-section, with the opening of the U-shape facing downwards.

[0040] Furthermore, to further explain the device, this embodiment also provides a method for welding a gooseneck traction beam for railway tank cars, using the aforementioned welding device for a gooseneck traction beam for railway tank cars, including the following steps:

[0041] Step 1: Assemble the welding device for the gooseneck traction beam of the railway tank car;

[0042] Step 2: Prepare a set of web plates 9 and lower cover plates 10. Attach the web plates 9 to the side of the second positioning plate 7 and attach the lower cover plates 10 to the upper surfaces of the first positioning plate 4, the third positioning plate 5, and the fourth positioning plate 6. Then, use spot welding to pre-weld the connection between the web plates 9 and the lower cover plates 10. The number of pre-welded parts is four evenly distributed.

[0043] Step 3: Use multiple clamps to clamp the web plate 9 to the second positioning plate 7, and the lower cover plate 10 to the first positioning plate 4, the third positioning plate 5, and the fourth positioning plate 6.

[0044] Step 4: Five process ribs are spot-welded between the side surface of the web plate 9 away from the second positioning plate 7 and the side surface of the lower cover plate 10 away from the first positioning plate 4, the third positioning plate 5 and the fourth positioning plate 6. The process ribs are spaced at a preset distance from each other.

[0045] Step 5: Weld the inner weld between the web plate 9 and the lower cover plate 10;

[0046] Step 6: Weld the outer weld between the web plate 9 and the lower cover plate 10;

[0047] Step 7: Wait for the preset time to allow the welded web plate 9 and lower cover plate 10 assembly to cool to room temperature;

[0048] Step 8: Remove all the clamps and lift the assembly of web plate 9 and lower cover plate 10 away from the welding device;

[0049] Step 9: Cut the connection between the process diagonal ribs and the web plate 9 and the lower cover plate 10, remove all process diagonal ribs, grind the side surface of the web plate 9 away from the second positioning plate 7 and the side surface of the lower cover plate 10 away from the first positioning plate 4, the third positioning plate 5 and the fourth positioning plate 6 until smooth, and complete the welding of a set of web plates 9 and lower cover plates 10.

[0050] Step 10: Repeat steps 2 to 9 to obtain another set of welded web plates 9 and lower cover plates 10;

[0051] Step 11: Assemble the two sets of web plates 9 and lower cover plates 10 with the front follower plate seat, rear follower plate seat and partition plate in a preset manner to obtain a gooseneck traction beam.

[0052] The aforementioned positions secured by clamps can also be fixed using a screw rod and nut structure. The process diagonal ribs provide rigid positioning for the web 9 and lower cover plate 10, effectively controlling welding deformation. The clamp-based fixation of the web 9 and lower cover plate 10 is convenient, reliable, and easy to disassemble, making it suitable for mass production.

[0053] In practical applications, the dimensions of the second positioning plate 7, the first positioning plate 4, the third positioning plate 5, the fourth positioning plate 6, and other related components can be adjusted to meet the manufacturing needs of various tank truck traction beams, depending on the dimensions of the gooseneck traction beam.

Claims

1. A welding device for a gooseneck traction beam of a railway tank car, wherein the gooseneck traction beam comprises two parallel webs (9), a lower cover plate (10) respectively disposed at the lower outer side of the two webs (9), and a front follower plate seat, a rear follower plate seat, and a partition plate disposed between the two webs (9), wherein the lower cover plate (10) comprises a first plate α, a second plate β, and a third plate γ connected in sequence, and the first plate α and the third plate γ are parallel, the intersection edge of the first plate α and the second plate β is defined as L1, the intersection edge of the second plate β and the third plate γ is defined as L2, and the plane angles θ1 and θ2 of the dihedral angles α-L1-β and β-L2-γ are both obtuse angles, characterized in that: It includes two first support plates (1), multiple second connecting plates (8), a first positioning plate (4), a third positioning plate (5), a fourth positioning plate (6), and a second positioning plate (7); Both of the first support plates (1) are vertically arranged and connected to each other by connecting components; The second connecting plate (8) is L-shaped, comprising a vertical section and a horizontal section that are perpendicular to each other; The first positioning plate (4) and the fourth positioning plate (6) are both horizontally arranged and located at the upper ends of the two first support plates (1), respectively. The third positioning plate (5) is inclinedly arranged at the upper end of the connecting assembly. The upper edge of one end of the third positioning plate (5) is flush with the upper edge of the first positioning plate (4), and the upper edge of the other end is flush with the upper edge of the fourth positioning plate (6). The intersecting edge of the first positioning plate (4) and the third positioning plate (5) is defined as L3, and the intersecting edge of the third positioning plate (5) and the fourth positioning plate (6) is defined as L4. L3 is parallel to L4. The upper surfaces of the first positioning plate (4), the third positioning plate (5) and the fourth positioning plate (6) are respectively adapted to the lower edges of the first plate α, the second plate β and the third plate γ of the lower cover plate (10) for positioning and supporting the lower cover plate (10). The second positioning plate (7) is vertically positioned above one side of the first positioning plate (4), the third positioning plate (5) and the fourth positioning plate (6), and L3 and L4 are respectively perpendicular to the second positioning plate (7). The bottom surface of the second positioning plate (7) is provided with a gap between it and the upper surface of the first positioning plate (4), the third positioning plate (5) and the fourth positioning plate (6). The vertical sections of the multiple second connecting plates (8) are respectively connected to the outer side of the second positioning plate (7), and the horizontal sections are respectively connected to the lower surface of the first positioning plate (4) or the fourth positioning plate (6) at the corresponding position. The second positioning plate (7) is used to position the web plate (9).

2. The welding device for a gooseneck traction beam of a railway tank car according to claim 1, characterized in that: The connecting assembly includes a first connecting plate (2) that is connected to the inner side of the two first support plates (1) respectively, and two second support plates (3) with different heights disposed on the upper surface of the first connecting plate (2). Both second support plates (3) are connected to the lower surface of the third positioning plate (5); wherein the second support plate (3) closer to the first positioning plate (4) is higher than the second support plate (3) closer to the fourth positioning plate (6).

3. A welding device for a gooseneck traction beam of a railway tank car according to claim 1 or 2, characterized in that: The lower edge of the second positioning plate (7) is parallel to the upper edge of the assembly of the first positioning plate (4), the third positioning plate (5) and the fourth positioning plate (6).

4. The welding device for a gooseneck traction beam of a railway tank car according to claim 3, characterized in that: The number of the second connecting plates (8) is eight.

5. The welding device for a gooseneck traction beam of a railway tank car according to claim 1, characterized in that: Each of the first support plates (1) has an I-shaped cross section.

6. The welding device for a gooseneck traction beam of a railway tank car according to claim 2, characterized in that: Each of the second support plates (3) has a U-shaped cross-section, and the opening of the U-shape faces the fourth positioning plate (6).

7. The welding device for a gooseneck traction beam of a railway tank car according to claim 6, characterized in that: The cross-section of the first connecting plate (2) is U-shaped, and the opening of the U-shape faces downward.

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