CN215857216U - Manufacturing structure of large-section cantilever arm assembly - Google Patents
Manufacturing structure of large-section cantilever arm assembly Download PDFInfo
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- CN215857216U CN215857216U CN202121134348.1U CN202121134348U CN215857216U CN 215857216 U CN215857216 U CN 215857216U CN 202121134348 U CN202121134348 U CN 202121134348U CN 215857216 U CN215857216 U CN 215857216U
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- cantilever arm
- arm assembly
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 39
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 238000003491 array Methods 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 210000001503 joint Anatomy 0.000 abstract description 6
- 230000002401 inhibitory effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract description 2
- 241001513371 Knautia arvensis Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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Abstract
A manufacturing structure of a large-section cantilever arm assembly is disclosed, wherein a top plate unit is horizontally arranged on a plurality of buttresses, and a plurality of positioning ribs are arranged on a top plate main body of the top plate unit; a plurality of crossbeams are arranged on the top plate unit, a plurality of positioning ribs below are clamped into the groove arrays on the lower end faces of the crossbeams, the upper end faces of the crossbeams are provided with inclined struts, a middle longitudinal beam is arranged between every two adjacent crossbeams, and the edge of the top plate unit is arranged in the direction parallel to the crossbeams by the side longitudinal beams. The positioning plate formed by spot welding on the top plate main body and the groove array on the cross beam are in embedded butt joint, so that the deformation amplitude of the top plate and the cross beam in the assembling and welding process is effectively limited, and meanwhile, the edge longitudinal beam is provided with a reinforcing rib in a spot welding manner, so that the reinforcing rib is used as a positioning piece for inhibiting the welding deformation of the edge longitudinal beam; and the positioning ribs and the cross beam are respectively used as shaping pieces for inhibiting welding residual stress deformation of the top plate main body in the longitudinal direction and the transverse direction, so that the overall dimension of each part is effectively ensured to meet the standard requirement, and the product quality of the cantilever arm assembly is improved.
Description
Technical Field
The utility model belongs to the technical field of bridge part manufacturing, and particularly relates to a manufacturing structure of a large-section cantilever arm assembly.
Background
The golden sea bridge is a domestic first-seat highway-railway same-layer multi-tower cable-stayed bridge, a novel large-size cantilever type steel box girder is adopted, and a large-section cantilever assembly is used as an important part for supporting two sides, so that the golden sea bridge has higher mechanical property requirements on production and manufacturing. Because enough mechanical strength needs to be ensured, higher welding strength needs to be realized when the large-section cantilever arm combined part is manufactured, and because the large-section cantilever arm combined part has large size span and a large number of reinforcing ribs, welding deformation is easy to occur in the manufacturing process, the finished product quality of the cantilever arm combined part is reduced, and the bearing performance of a bridge formed by the cantilever arm combined part is negatively influenced, so a new technical scheme is needed to solve the problem.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a manufacturing structure of a large-section cantilever arm assembly, which is used for effectively reducing the welding deformation of the cantilever arm assembly and ensuring the mechanical property of a manufactured finished product.
The utility model is implemented by the following technical scheme: a manufacturing structure of a large-section cantilever arm assembly comprises a plurality of buttresses, a top plate unit, a plurality of cross beams, a plurality of inclined struts, a plurality of middle longitudinal beams and side longitudinal beams. Wherein a plurality of the buttresses are arranged on the ground in an array manner, and the top plate unit is horizontally arranged on the plurality of the buttresses; a plurality of positioning ribs which are arranged in an equidistant array are arranged on the top plate main body of the top plate unit; the plurality of cross beams are equidistantly arranged on the top plate unit in a direction perpendicular to the positioning ribs, and a groove array is arranged on the lower end face of each cross beam, so that the plurality of positioning ribs below are clamped into the groove arrays for butt joint; meanwhile, the middle part of the upper end surface of each cross beam is provided with an inclined strut which is obliquely arranged; the middle longitudinal beam vertical to the adjacent cross beams is arranged between every two adjacent cross beams, and the middle longitudinal beams are attached to the top plate unit; the side longitudinal beams are arranged on the edges of the top units in a direction parallel to the cross beams and are attached to the top units.
Furthermore, the top plate main body of the top plate unit is fixedly butted with the positioning ribs in a spot welding mode.
Furthermore, when the top plate unit is positioned with the components except the positioning ribs, the top plate unit is butted in a positioning welding mode.
Furthermore, when the top plate unit is fixed with the parts except the positioning ribs, the top plate unit is butted in a full welding or section welding mode.
Furthermore, the positioning ribs are formed by bending strip-shaped plates.
Furthermore, the edge longitudinal beam is provided with a reinforcing rib which is arranged in parallel with the extension direction of the beam body, and the reinforcing rib and the edge longitudinal beam are butted in a spot welding mode.
The utility model has the beneficial effects that: according to the utility model, the buttress is utilized to support the top plate unit to form an inverted splicing welding structure, and then the positioning plate formed by spot welding on the top plate main body and the embedded butt joint of the groove array on the cross beam are utilized to effectively limit the deformation amplitude of the top plate and the cross beam in the assembling and welding process; and the positioning ribs and the cross beam are respectively used as shaping pieces for inhibiting welding residual stress deformation of the top plate main body in the longitudinal direction and the transverse direction, so that the overall dimension of each part is effectively ensured to meet the standard requirement, and the product quality of the cantilever arm assembly is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the ceiling unit according to the present invention;
FIG. 3 is a schematic structural view of the butt joint of the cross beam and the diagonal brace in the present invention;
fig. 4 is a side view of the structure of the present invention with the side rail abutting the stiffener.
In the figure: the structure comprises 1-buttress, 2-top plate unit, 2 a-top plate main body, 2 b-positioning rib, 3-cross beam, 3 a-groove array, 4-diagonal brace, 5-middle longitudinal beam, 6-side longitudinal beam and 6 a-reinforcing rib.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a manufacturing structure for a large-segment cantilever arm assembly includes a plurality of buttresses 1, a roof plate unit 2, a plurality of cross members 3, a plurality of diagonal braces 4, a plurality of middle longitudinal beams 5, and side longitudinal beams 6. Wherein a plurality of the buttresses 1 are arranged on the ground in an array manner, and the top plate unit 2 is horizontally arranged on the plurality of the buttresses 1; a plurality of positioning ribs 2b arranged in an equidistant array mode are arranged on a top plate main body 2a of the top plate unit 2 in a spot welding mode, and the positioning ribs 2b are made of strip-shaped plates through bending; the plurality of cross beams 3 are equidistantly arranged on the top plate unit 2 in a direction perpendicular to the positioning ribs 2b, and a groove array 3a is arranged on the lower end face of each cross beam 3, so that the plurality of positioning ribs 2b below are clamped into the groove arrays 3a for butt joint; meanwhile, the middle part of the upper end surface of each cross beam 3 is provided with an inclined strut 4 which is obliquely arranged; the middle longitudinal beam 5 vertical to the two adjacent cross beams 3 is arranged between every two adjacent cross beams 3, and the middle longitudinal beams 5 are attached to the top plate unit 2; the side stringers 6 are arranged at the edges of the roof unit in a direction parallel to the cross beams 3 and are fitted thereto.
The steps for implementing the functions of the utility model are as follows:
s1: the method comprises the steps of drawing a ground sample on a working ground, arranging a plurality of buttresses 1, selecting a top plate main body 2a, welding a plurality of positioning ribs 2b which are arranged at equal intervals on the surface of the top plate main body in a spot welding mode, and placing the back of a manufactured top plate unit 2 on the plurality of buttresses 1 in an inverted mode.
S2: as shown in fig. 2, diagonal braces 4 are welded on the tops of a plurality of cross beams 3 in an inclined manner (the diagonal braces 4 are used as diagonal reinforcing ribs for manufacturing a bridge in the later period), then the cross beams 3 and the cross beams 3 welded with the diagonal braces 4 are arranged on a top plate unit 2 at intervals through a lifting appliance, the positions of positioning ribs 2b are checked to be embedded into groove arrays 3a at the bottoms of the cross beams 3, spot welding positions are ground to adjust the positions of the positioning ribs 2b if deviation exists, after all the positioning ribs 2b are clamped into an upper cross beam 3 array, section welding processing is carried out on a top plate main body 2a, the positioning ribs 2b and the cross beams 3, welding deformation is controlled by butt joint of the positioning ribs 2b at the bottom and the groove arrays 3a, after welding is finished, the positioning ribs 2b are used as longitudinal positioning pieces of the top plate main body 2a, the cross beams 3 are used as transverse positioning pieces of the top plate main body 2a, and therefore, the top body is prevented from being distorted and deformed due to welding residual stress, thereby ensuring the shape of each part to be correct.
S3: the middle longitudinal beams 5 are butt-jointed between every two adjacent cross beams 3 in a spot welding mode, the positions of the middle longitudinal beams 5 are checked to enable the middle longitudinal beams to be in the same straight line, and the repair welding treatment after error is avoided.
S4: as shown in fig. 4, the outer inclined surface of the side longitudinal beam 6 is butted with the reinforcing rib 6a by a spot welding mode, so that the arrangement direction of the reinforcing rib 6a is parallel to the beam body of the side longitudinal beam 6, then the reinforcing rib is turned into the side end of the surface of the top plate unit 2 by a lifting appliance, the reinforcing rib is preliminarily fixed on the top plate injection by fine adjustment and spot welding positioning of a hammer, then the contact part of the reinforcing rib, the top plate main body 2a and the cross beam 3 is subjected to section welding treatment, at this stage, the reinforcing rib 6a is used as a temporary positioning component for controlling the welding deformation of the large-span beam body, so that the welding assembly accuracy of the side longitudinal beam 6 and the butting component thereof is ensured, after most of the welding residual stress is eliminated, the related spot welding body of the reinforcing rib 6a is ground and is dismounted, and the state as shown in fig. 1 is formed, and the finished product of the large-section cantilever arm assembly with high precision quality is obtained.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the present invention.
Claims (6)
1. The utility model provides a manufacturing structure about arm sub-assembly is chosen to big section, includes a plurality of buttress, roof unit, a plurality of crossbeam, a plurality of bracing, a plurality of middle longeron, limit longeron, its characterized in that: it is a plurality of the buttress is arranged on ground with the array mode, the roof unit is kept flat on a plurality of buttresses, is equipped with the location rib that a plurality of equidistance arrays were arranged in the roof main part of roof unit, and is a plurality of the crossbeam is with the perpendicular to the direction equidistance of location rib is arranged on the roof unit, and the terminal surface all is equipped with groove array under every crossbeam, makes a plurality of location rib card in below go into dock within the groove array, and the middle part of every crossbeam up end is equipped with the bracing that the slant was arranged, all is equipped with one between per two adjacent crossbeams rather than the vertically middle longeron, longeron in the middle of a plurality of are all laminated in the roof unit, the edge of top unit is located with the direction that is on a parallel with the crossbeam to the limit longeron and is installed rather than laminating.
2. A structure for manufacturing a large-segment cantilever arm assembly according to claim 1, wherein: the top plate main body of the top plate unit is fixedly butted with the plurality of positioning ribs in a spot welding mode.
3. A structure for manufacturing a large-segment cantilever arm assembly according to claim 1, wherein: and the top plate unit is butted with a component except the positioning rib in a positioning welding mode.
4. A structure for manufacturing a large-segment cantilever arm assembly according to claim 1, wherein: and the top plate unit is butted in a full welding or section welding mode when being fixed with the parts except the positioning ribs.
5. A structure for manufacturing a large-segment cantilever arm assembly according to claim 1, wherein: the positioning ribs are formed by bending strip-shaped plates.
6. A structure for manufacturing a large-segment cantilever arm assembly according to claim 1, wherein: the side longitudinal beam is provided with a reinforcing rib which is arranged in parallel with the extension direction of the beam body, and the reinforcing rib is butted with the side longitudinal beam in a spot welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121134348.1U CN215857216U (en) | 2021-05-25 | 2021-05-25 | Manufacturing structure of large-section cantilever arm assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121134348.1U CN215857216U (en) | 2021-05-25 | 2021-05-25 | Manufacturing structure of large-section cantilever arm assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215857216U true CN215857216U (en) | 2022-02-18 |
Family
ID=80317103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121134348.1U Active CN215857216U (en) | 2021-05-25 | 2021-05-25 | Manufacturing structure of large-section cantilever arm assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215857216U (en) |
-
2021
- 2021-05-25 CN CN202121134348.1U patent/CN215857216U/en active Active
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