A test bed for arch rib segment welding

Abstract

The present application relates to the technical field of bridge construction, and particularly relates to a test bench for arch rib segment welding. The present application comprises an arch rib segment, a replaceable welding segment, a load-bearing pipe support and a temporary pipe support, one end of the arch rib segment is equipped with the replaceable welding segment, the other end of the arch rib segment is equipped with the load-bearing pipe support, the bottom of the arch rib segment is equipped with the temporary pipe support, the arch rib segment is used for bearing load, the replaceable welding segment and the load-bearing pipe support are used for connecting between two adjacent arch rib segments, the temporary pipe support is used for supporting the arch rib segment, and the arch rib segment is composed of a fixed magnetic force clamp base, an external connecting plate and an arch rib body. The present application can guarantee the normal installation of the arch rib segment and the movement of the welding device, and can also meet the repeated use requirement, the arch rib part can be used for multiple times, the arch rib segment can be welded for multiple times, the welding experiment cost is greatly reduced, and the present application has good popularization value.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge construction, in particular to a test bench for arch rib segment welding. BACKGROUND

[0002] The arch rib is the framework of the main arch ring of the arch bridge, the main arch ring is the main load-bearing structure in the arch bridge structure, the different arch rib segments are connected through splicing structures and field welding, and the main arch ring is the main load-bearing structure in the arch bridge structure and transmits various loads to the pier. In order to ensure the welding quality of field welding, the actual arch rib and splicing structure need to be combined to construct a suitable experimental environment, and relevant research on arch rib segment welding needs to be carried out.

[0003] In the existing public literature, the main welding test bench mainly aims at small parts or planar welding problems, and the welding of the arch rib segment needs the welding machine to be fixed on one side of the weld through a specific structure and to perform corresponding welding movement around the arch rib. On the one hand, the arch rib segment welding test bench needs to reserve a considerable space to ensure the normal installation of the arch rib segment and the movement of the welding device; on the other hand, the test bench needs to meet the repeated use requirement, the arch rib segment is usually large in size, and the welding experiment is irreversible, so if the test bench arch rib part can only be used once, the experimental cost of welding will be greatly increased. Therefore, we propose a test bench for arch rib segment welding. SUMMARY

[0004] The purpose of the present application is to provide a test bench for arch rib segment welding to solve the problems raised in the background.

[0005] In order to solve the above technical problems, the present application adopts the following technical scheme:

[0006] A test bench for arch rib segment welding, comprising an arch rib segment, a replaceable welding segment, a load-bearing pipe support and a temporary pipe support, one end of the arch rib segment is equipped with the replaceable welding segment, the other end of the arch rib segment is equipped with the load-bearing pipe support, the bottom of the arch rib segment is equipped with the temporary pipe support, the arch rib segment is used for bearing load, the replaceable welding segment and the load-bearing pipe support are used for connecting between two adjacent arch rib segments, and the temporary pipe support is used for supporting the arch rib segment.

[0007] Preferably, the arch rib segment is composed of a fixed magnetic force clamp seat, an external connecting plate and an arch rib body, the inner side of the arch rib segment is provided with the arch rib body, the end of each of the two adjacent arch rib bodies close to each other is uniformly provided with a plurality of external connecting plates, and the inner side of the arch rib body is uniformly provided with a plurality of fixed magnetic force clamp seats.

[0008] Preferably, the inner side of the arch rib body and the position corresponding to the external connecting plate are fixed with welding seats, and the inner side of the welding seat is detachably connected with an inner connecting block.

[0009] Preferably, the middle part of one side of the inner connecting block is provided with a notch, and the inner side of the inner connecting block is uniformly provided with a plurality of connecting holes.

[0010] Preferably, the replaceable welding section is composed of a test welding section and a welding groove, one end of the arch rib segment is sleeved with the test welding section, and the outer side of the test welding section is provided with the welding groove.

[0011] Preferably, the load-bearing pipe support is composed of a load-bearing pipe support cover plate and a load-bearing pipe support bottom frame, one end of the arch rib segment away from the test welding section is sleeved with the load-bearing pipe support cover plate, and the bottom of the load-bearing pipe support cover plate is fixed with the load-bearing pipe support bottom frame.

[0012] Preferably, the inner side of the load-bearing pipe support cover plate is provided with a heat insulation flexible member.

[0013] Preferably, the heat insulation flexible member is a heat insulation flexible material.

[0014] Preferably, the temporary pipe support is composed of a temporary pipe support head and a temporary pipe support bottom frame, the bottom of the arch rib body is fixed with the temporary pipe support head, and the bottom of the temporary pipe support head is fixed with the temporary pipe support bottom frame through a screw.

[0015] Preferably, the axial length of the test welding section is 50mm.

[0016] It can be seen without doubt that the above technical solutions of the present application can certainly solve the technical problems to be solved by the present application.

[0017] Meanwhile, through the above technical solutions, the present application at least has the following beneficial effects:

[0018] The present application can guarantee the normal installation of the arch rib segment and the movement of the welding device, and can also meet the repeated use requirement. The arch rib part can be used repeatedly, the arch rib segment can be welded for multiple times, the experimental cost of welding is greatly reduced, and the present application has good popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a structural schematic diagram of the present application.

[0021] Figure 2 The connecting structure schematic diagram of the test welding section and the welding groove of the present application;

[0022] Figure 3 The connecting structure schematic diagram of the arch rib main body and the external connecting plate of the present application;

[0023] Figure 4 The structure schematic diagram of the internal connecting block of the present application;

[0024] Figure 5 The connecting structure schematic diagram of the fixed magnetic force card seat and the test welding section of the present application;

[0025] Figure 6 The connecting structure schematic diagram of the bearing pipe support cover plate and the bearing pipe support bottom frame of the present application;

[0026] Figure 7 The connecting structure schematic diagram of the temporary pipe support head and the temporary pipe support bottom frame of the present application;

[0027] Figure 8 The separation state schematic diagram of the temporary pipe support head and the temporary pipe support bottom frame of the present application;

[0028] Figure 9 The first building mode flow chart of the arch rib segment welding test bench of the present application;

[0029] Figure 10 The welding test section replacement flow chart of the arch rib segment welding test bench of the present application.

[0030] In the drawings, the component list represented by each sign is as follows:

[0031] In the drawings: 1, arch rib segment; 2, replaceable welding section; 3, bearing pipe support; 4, temporary pipe support; 5, internal connecting block; 6, fixed magnetic force card seat; 7, external connecting plate; 8, arch rib main body; 9, slot; 10, connecting hole; 11, test welding section; 12, welding groove; 13, bearing pipe support cover plate; 14, bearing pipe support bottom frame; 15, heat insulation flexible piece; 16, temporary pipe support head; 17, temporary pipe support bottom frame. Embodiment

[0032] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application. Example

[0033] Reference Figures 1-10The utility model provides a test bench for arch rib segment welding, including arch rib segment 1, replaceable welding section 2, load bearing pipe support 3 and temporary pipe support 4, one end of arch rib segment 1 is equipped with replaceable welding section 2, the other end of arch rib segment 1 is equipped with load bearing pipe support 3, the bottom of arch rib segment 1 is equipped with temporary pipe support 4, arch rib segment 1 is used to carry the load, replaceable welding section 2 and load bearing pipe support 3 are used to connect between two adjacent arch rib segments 1, and temporary pipe support 4 is used to support arch rib segment 1.

[0034] Arch rib segment 1 is composed of fixed magnetic force card seat 6, external connecting plate 7 and arch rib body 8, the inner side of arch rib segment 1 is provided with arch rib body 8, a plurality of external connecting plates 7 are uniformly fixed on the end of the mutual approach of two adjacent arch rib bodies 8, a plurality of fixed magnetic force card seats 6 are uniformly arranged on the inner side of arch rib body 8, whether external connecting plate 7 needs to be arranged needs to be decided according to the actual arch rib segment 1 structure, if the outside of actual arch rib segment 1 is smooth, then external connecting plate 7 is not needed, in addition, external connecting plate 7 can also be added under the condition of needing to simulate the external obstacle avoidance environment in the welding process.

[0035] The inner side of arch rib body 8 and the position corresponding to external connecting plate 7 are fixed with welding seat, the inner side of welding seat is detachably connected with inner connecting block 5, the arch rib body 8 of the structure needs to be selected according to the actual test requirement, if the arch rib body 8 does not have the splicing structure, then the connecting structure of welding inner connecting block 5 needs to be additionally welded inside.

[0036] Replaceable welding section 2 is composed of test welding section 11 and welding bevel 12, one end of arch rib segment 1 is sleeved with test welding section 11, one of welding test section 11 is welded with solder carrier ring, welding bevel 12 is formed on the outer side of test welding section 11, the axial length of test welding section 11 is 50mm, in order to meet the function of repeated welding of test bench, test welding section 11 needs to simulate the welding bevel material and geometric size of the field welding part on one hand, and also needs to have good replaceability and lower cost, therefore, the manufacturing material of test welding section 11 is consistent with arch rib body 8, the axial length of test welding section 11 is 50mm, test welding section 11 is circular ring structure, corresponding welding bevel 12 is arranged at the connecting position according to test requirement, in addition, according to actual construction requirement, one of test welding section 11 is connected with a thin bottom baffle through pre-welding inside, to avoid the dripping phenomenon of solder before solidification, at the same time, the bottom baffle prevents solder from dripping, and also guarantees the good solidification state of weld, guarantees the good shape after solidification, and further guarantees the weld quality.

[0037] The load-bearing pipe support 3 is composed of a load-bearing pipe support cover plate 13 and a load-bearing pipe support base 14, the load-bearing pipe support cover plate 13 is sleeved on one end of the arch rib segment 1 away from the test welding segment 11, the bottom of the load-bearing pipe support cover plate 13 is fixed with the load-bearing pipe support base 14, different lifting support sizes are adopted according to the working space required by the welding equipment for different arch rib segments 1; the load-bearing pipe support cover plate 13 is connected with the load-bearing pipe support base 14 through bolts and nuts, thereby fixing the arch rib segment 1, and the diameters of the circular arcs of the load-bearing pipe support cover plate 13 and the load-bearing pipe support base 14 depend on the parameters of the arch rib segment 1 required on site.

[0038] The temporary pipe support 4 is composed of a temporary pipe support head 16 and a temporary pipe support base 17, the bottom of the arch rib body 8 is fixed with the temporary pipe support head 16, and the bottom of the temporary pipe support head 16 is fixed with the temporary pipe support base 17 through screws, the temporary pipe support head 16 and the temporary pipe support base 17 are mainly used as temporary supports during the installation of the arch rib stage, and after the inner connecting block 5 or the arch rib segment 1 is spliced, the temporary rib plate needs to be removed to meet the working space requirement of the welding mechanism. Embodiment

[0039] Further optimization of embodiment 1, specifically, as shown in Figure 4 The middle part of one side of the inner connecting block 5 is provided with a notch 9, and a plurality of connecting holes 10 are uniformly arranged on the inner side of the inner connecting block 5, the notch 9 is used for cooperation and connection with the bottom baffle in the test welding segment 11, through the arrangement of the connecting holes 10, the bolt fastening connection is facilitated, and then the connection of the two arch rib bodies 8 and the preliminary fixation of the test welding segment 11 are facilitated. Embodiment

[0040] Further optimization of embodiment 1, specifically, as shown in Figure 6 The inner side of the load-bearing pipe support cover plate 13 is provided with a heat-insulating flexible member 15.

[0041] The heat-insulating flexible member 15 is a heat-insulating flexible material, the flexible heat-insulating material can allow the circular axis of the arch rib segment 1 to have a certain degree of curvature, and the vertical curve radius of the arch rib segment 1 on the construction site is usually tens of thousands of meters, so such a design can completely meet the support condition, and the specific flexible heat-insulating material can be polyurethane, vermiculite or the like.

[0042] The implementation process of the above technical solution is:

[0043] Reference Figure 9 , for the first time:

[0044] 1. Place one arch rib segment 1 on the load-bearing pipe support 3 and the temporary pipe support 4, and if necessary, install an external truss structure to further ensure the smooth installation;

[0045] 2, two arch rib segments 1 according to the size of the test welding section 11 is placed in the corresponding position, and the load pipe support cover plate 13 in the load pipe support 3 and the load pipe support chassis 14 are connected with each other, and the test welding section 11 is spliced and placed in the middle of the two arch rib bodies 8;

[0046] 3, first, place the inner connecting block 5 and fasten the connection by bolts to complete the temporary connection of the two arch rib bodies 8 and the preliminary fixation of the test welding section 11; then place the fixed magnetic force card seat 6, the end face is against the bottom baffle of the test welding section 11, and the final fixation of the test welding section 11 is completed through magnetic attraction; then, according to the test requirements, the external connecting plate 7 and the welding device are arranged;

[0047] 4, remove the temporary pipe support 4, complete the construction of the arch rib segment 1 test bench. When the temporary pipe support 4 is limited by the external connecting plate 7 and cannot be removed, then the bolts of the temporary pipe support 4 head and the temporary pipe support 4 chassis are removed, and the temporary pipe support 4 chassis is removed from the side, then the temporary pipe support 4 can be completely removed.

[0048] Reference Figure 10 , when the test welding section 11 is replaced:

[0049] 1, place the temporary pipe support 4 on both sides of the test welding section 11, if it is blocked by the external connecting plate 7, then the same method as when disassembling is adopted, the temporary pipe support 4 is separated and then arranged;

[0050] 2, remove the inner connecting block 5, the fixed magnetic force card seat 6 and the external connecting plate 7, complete the separation of the two arch rib bodies 8, and finally take out the welded test welding section 11, one of which is welded with a welding filler metal bearing ring;

[0051] 3, repeat steps 3 and 4 of the first installation, that is, the replacement of the test welding section 11 can be completed.

[0052] Through the above setting, the above technical problems can be solved, and the following technical effects can be achieved:

[0053] The present application can guarantee the normal installation of the arch rib segment 1 and the movement of the welding device, and can also meet the repeated use requirement. The arch rib part can be used repeatedly, the arch rib segment 1 can be welded for multiple times, the welding experiment cost is greatly reduced, and the present application has good popularization value.

[0054] In this application, unless otherwise clearly indicated and limited, the terms "mounting", "connection", "connecting", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] Obviously, the above-described embodiments are only a part of the embodiments of the present application, and are not all the embodiments. The preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent substitutions for part of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A test bench for welding arch rib segments, characterized in that, The system includes an arch rib segment (1), a replaceable welded segment (2), a load-bearing pipe support (3), and a temporary pipe support (4). One end of the arch rib segment (1) is equipped with a replaceable welded segment (2), the other end of the arch rib segment (1) is equipped with a load-bearing pipe support (3), and the bottom of the arch rib segment (1) is equipped with a temporary pipe support (4). The arch rib segment (1) is used for load bearing, the replaceable welded segment (2) and the load-bearing pipe support (3) are used for connection between two adjacent arch rib segments (1), and the temporary pipe support (4) is used for supporting the arch rib segment (1). The arch rib segment (1) is composed of a fixed magnetic card seat (6), an external connecting plate (7) and an arch rib body (8). The arch rib body (8) is provided on the inner side of the arch rib segment (1). Multiple external connecting plates (7) are evenly fixed at one end of two adjacent arch rib bodies (8) that are close to each other. Multiple fixed magnetic card seats (6) are evenly provided on the inner side of the arch rib body (8). Welding seats are fixed on the inner side of the arch rib body (8) and at the position corresponding to the outer connecting plate (7), and an inner connecting block (5) is fixed on the inner side of the welding seat. The replaceable welded section (2) consists of a test welded section (11) and a weld bevel (12). One end of the arch rib segment (1) is fitted with the test welded section (11), and a weld bevel (12) is provided on the outer side of the test welded section (11).

2. The test bench for welding arch rib segments according to claim 1, characterized in that, A slot (9) is provided in the middle of one side of the inner connecting block (5), and multiple connecting holes (10) are evenly distributed on the inner side of the inner connecting block (5).

3. The test bench for welding arch rib segments according to claim 2, characterized in that, The load-bearing pipe support (3) is composed of a load-bearing pipe support cover plate (13) and a load-bearing pipe support base frame (14). The end of the arch rib segment (1) away from the test welding segment (11) is fitted with a load-bearing pipe support cover plate (13), and the bottom of the load-bearing pipe support cover plate (13) is fixed with a load-bearing pipe support base frame (14).

4. The test bench for welding arch rib segments according to claim 3, characterized in that, The inner side of the load-bearing pipe support cover plate (13) is provided with a heat-insulating flexible component (15).

5. A test bench for welding arch rib segments according to claim 4, characterized in that, The thermal insulation flexible component (15) is a thermal insulation flexible material.

6. A test bench for welding arch rib segments according to claim 5, characterized in that, The temporary pipe support (4) consists of a temporary pipe support head (16) and a temporary pipe support base (17). The bottom of the arch rib body (8) is fixed with a temporary pipe support head (16), and the bottom of the temporary pipe support head (16) is fixed with a temporary pipe support base (17) by screws.

7. A test bench for welding arch rib segments according to claim 6, characterized in that, The axial length of the test welded section (11) is 50 mm.

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