Cold leveling tool device for bridge steel plate unit piece

Abstract

The utility model relates to the field of mechanical devices, in particular to a cold leveling tool device for a bridge steel plate unit piece. The tool device comprises two sets of symmetrically-arranged stand columns (2), bases (11) are arranged below the stand columns (2), and the stand columns (2) and the bases (11) integrally form an L-shaped structure. The upright post (2) comprises a hole for the cross beam (1) to pass through; a hydraulic oil pump (7) is arranged on the cross beam (1) and is connected with a hydraulic jack (8), and the hydraulic jack (8) can downwards extrude a bridge steel plate (14). The correcting tool has the beneficial effects that a simple correcting tool is manufactured for a unit plate which needs to be subjected to deformation trimming after reversible deformation welding, through the principle of a gate-type press machine, a multi-point small oil press is additionally arranged, and under the help of an operator, front-back movement and multi-point pressure applying are achieved, so that correction of the whole plate unit is completed.

Description

Technical Field

[0001] The utility model relates to the field of mechanical devices, in particular to a cold leveling tooling device for a bridge steel plate unit. Background Art

[0002] In the manufacture of steel structure bridges, there are many longitudinal ribs on the top plate unit, bottom plate unit and web plate unit, and the welds are relatively dense, which leads to serious deformation of the unit plate after the longitudinal ribs are welded. Since the unit plate is large in size and belongs to a large steel structure, it is very difficult to repair. Generally, the traditional flame correction method is used for correction, but the correction effect is poor and the repair time is relatively long, which consumes a lot of energy, increases the difficulty of steel box girder assembly, seriously affects the production progress and quality of steel box girders, and forms a shortcoming in steel box girder manufacturing.

[0003] There are many steel box girder products, with large dimensions and large welding deformation. In the manufacture of steel structure bridge box girders, the manufacture of top and bottom plate units accounts for the vast majority. Their dimensions are large, with a width between 2200mm and 3500mm, a length between 9000mm and 17000mm, and a thickness between 12mm and 32mm. The materials are all special steel for bridge steel structures. If the manufacturing quality and production efficiency of such plate units can be guaranteed, the overall quality and contract period of the box girder of this project can also be guaranteed. However, in the production of plate units, due to the large number of longitudinal rib welds and their excessive density, there is a longitudinal reinforcing rib every 200-300mm in the width direction, and the longitudinal ribs are concentrated on one side of the unit plate. After welding, due to the effect of thermal expansion and contraction, the plate unit shrinks and deforms greatly in the lateral direction, and the deformation reaches 120mm~150mm within the range of 3000mm, making it impossible to perform assembly operations.

[0004] Based on the above analysis, in order to solve the problem of welding deformation of the unit plate.

[0005] On May 9, 2024, a search was conducted in the Chinese Patent Publication Database with "steel plate and jack and hydraulic and door" as the abstract keywords, and 37 documents were found, namely: CN207996910U-steel structure node plate bending processing equipment; CN213598111U-a small door disassembly and assembly device for turbine tailwater pipe maintenance; CN208944865U-a mobile portal frame correction device for steel plate-shaped components; CN202239065U-gantry-type vertical hydraulic roller straightening device; CN105728508A-a steel plate bending machine for stainless steel door processing; CN203781744U-a special steering hydraulic lifting device for chimney steel inner tube construction; CN211949760U-a liftable construction Plank road; CN109175002A-A correction device and correction method for deformed steel plate-shaped components; CN206848068U-A pulling device for anchor rod pulling test; CN214683610U-A simple bending machine capable of automatic centering identification; CN112387816A-A simple bending machine capable of automatic centering identification; CN205798044U-A steel plate welding longitudinal seam correction device; CN205891775U-Automatic hydraulic gate for gangue bin; CN109826107A-Component support system and its use method; CN210676448U-A large-diameter hyperbolic steel plate pressing and forming tool; CN2 20414960U-A tool to eliminate the load settlement of the support in the existing culvert; CN105728509A-A steel plate bending process for stainless steel door processing; CN219582729U-A special tool for removing the rope pulley of the looping device; CN217601325U-Hydraulic construction equipment for concrete gate pier slipform; CN207013492U-A hydraulic bending steel plate device; CN203653076U-A gantry crane pin-type hydraulic walking mechanism; CN106351441A-Chimney climbing formwork construction device and construction method; CN206911982U-Earth plate ohm bend production tooling; CN208542870U-Small Type multifunctional hydraulic bending machine; CN115301777A-simple sheet metal bending machine; CN102849221A-military aircraft short-distance lift vehicle; CN201850109U-electrically controlled pneumatic jack; CN209007473U-ball mill pinion shaft coupling removal tool; CN209753717U-an arc pressing device for pressing steel box beams and steel-concrete beams; CN104047027A-aluminum electrolytic cell cradle assembly method; CN211679407U-door-type special press device; CN113562003A-a city sky bus transportation facility and control method; CN216196574U-a climbing formwork improved template;CN203820320U-A mechanism for the self-sliding tower section of a gantry crane self-lifting system; CN114636653A-A two-dimensional physical similarity simulation test device and method for fluid-solid coupling in coal seam mining; CN215715514U-A rapid lining device for open-cut tunnels; CN112575814A-A rapid lining device for open-cut tunnels. ;

[0006] Among them: CN217601325U discloses a concrete gate pier slipform hydraulic construction equipment, in which a ring beam is arranged outside the gate pier, and the ring beam surrounds the gate pier to form a closed whole, and the structure is too complicated to be leveled; CN115301777A discloses a sheet metal processing machinery technology field, specifically a simple sheet metal bending machine, which has a too complicated structure to be leveled;

[0007] The defect of these technologies is that they cannot be easily leveled. Utility Model Content

[0008] Purpose of the utility model: to provide a better cold leveling tooling device for bridge steel plate units. The specific purpose can be seen in the multiple substantial technical effects of the specific implementation part.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A bridge steel plate unit cold leveling tooling device, characterized in that:

[0011] The tooling device comprises two groups of symmetrically arranged columns 2, each of which comprises a base 11 below the columns 2, and the columns 2 and the base 11 form an L-shaped structure as a whole;

[0012] The upright column 2 includes a hole for passing the cross beam 1;

[0013] A hydraulic oil pump 7 is arranged on the cross beam 1, and the hydraulic oil pump 7 is connected to a hydraulic jack 8. The hydraulic jack 8 can squeeze the bridge steel plate 14 downward.

[0014] A further technical solution of the utility model is that an adjustment plate 4 is arranged in the hole included in the column 2, and the adjustment plate 4 is pressed on the crossbeam.

[0015] A further technical solution of the present invention is that a hydraulic oil pump 7 is installed on the cross beam 1 through the upper connecting plate 5 .

[0016] A further technical solution of the present invention is that a hydraulic oil pump 7 is installed under the cross beam 1 through a lower connecting plate 6 .

[0017] A further technical solution of the present invention is that an axle 9 and a directional wheel 12 are arranged on the side of the column 2 .

[0018] A further technical solution of the utility model is that a fixture plate 10 is arranged between the directional wheel 12 and the base 11 , and a bridge steel plate 14 is placed between the fixture plate 10 and the directional wheel 12 .

[0019] A further technical solution of the present invention is that a lifting lug 13 is arranged above the crossbeam 1 .

[0020] The utility model adopting the above technical scheme has the following beneficial effects compared with the prior art: a simple correction tool is made for the unit plate that needs to be repaired after anti-deformation welding. Through the principle of a portal press, a multi-point small hydraulic press is installed. With the help of the operator, forward and backward movement and multi-point pressure are achieved to complete the correction of the entire plate unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to further illustrate the utility model, the following is further described in conjunction with the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the utility model structure;

[0023] Among them: 1: crossbeam; 2: column; 3: reinforcement plate; 4: adjustment plate; 5: upper connecting plate; 6: lower connecting plate; 7: hydraulic oil pump; 8: hydraulic jack; 9: axle; 10: clamp plate; 11: base; 12: directional wheel; 13: lifting lug; 14. bridge steel plate. DETAILED DESCRIPTION

[0024] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] This patent provides a variety of parallel solutions. The different expressions are improved solutions or parallel solutions based on the basic solution. Each solution has its own unique characteristics. In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other. The fixing method not described in the text can be any fixing method such as thread fixing, bolt fixing or glue bonding.

[0027] Embodiment 1: Combination Figure 1 ; A bridge steel plate unit cold leveling fixture, characterized in that:

[0028] The tooling device comprises two groups of symmetrically arranged columns 2, each of which comprises a base 11 below the columns 2, and the columns 2 and the base 11 form an L-shaped structure as a whole;

[0029] The upright column 2 includes a hole for passing the cross beam 1;

[0030] The cross beam 1 is provided with a hydraulic oil pump 7, which is connected to a hydraulic jack 8, and the hydraulic jack 8 can press the bridge steel plate 14 downward. The substantial technical effect and the realization process of the technical solution here, i.e., the basic function, are as follows:

[0031] Organize technical, production and quality-related personnel to study practical ways and methods in stages and in a planned manner to solve the problem of welding deformation of steel box beam unit plates. Formulate corresponding solutions. Through investigation and research with front-line workers and production managers, make simple correction tools for unit plates that need to be repaired after anti-deformation welding. Through the principle of gantry press, add multi-point small hydraulic presses, and with the help of operators, realize forward and backward movement and multi-point pressure to complete the correction of the entire plate unit.

[0032] Through the above methods, multiple measures have been taken to achieve rapid and effective correction of plate unit welding deformation. Through this method of correction, the overall qualification rate of top and bottom plate units has increased, the flatness is ≤6mm, and the first inspection qualification rate is ≥95%, which greatly shortens the repair time, reduces the rework time and rework cost, and saves time for subsequent production. At the same time, when using this method for correction, the shrinkage caused by thermal correction is avoided, so that the plate unit rarely has errors in the external dimensions, and the unsafe factors at the production site are reduced, the flame correction method is eliminated, the gas usage is reduced, and the air quality in the workshop is purified. The correction time of three people for each top and bottom plate was shortened from the original 50 hours to 10 hours, saving 2720 hours of working hours, effectively shortening the construction period, ensuring quality, and greatly reducing the waste of auxiliary materials and energy. It has achieved the goal of strengthening management and promoting high-quality development of the enterprise.

[0033] Through the above methods, multiple measures have been taken to achieve rapid and effective correction of plate unit welding deformation, and the overall qualification rate of top and bottom plate units has increased, greatly shortening the repair time, reducing the repair time and repair cost, and saving time for subsequent production. At the same time, when using this method for correction, the shrinkage caused by thermal correction is avoided, so that the plate unit rarely has errors in the external dimensions, and the unsafe factors in the production site are also reduced.

[0034] After clamping the welded unit components that need to be leveled, adjust the jack parameters, perform multiple multilateral leveling, and use the directional wheels to continuously adjust to reduce the degree of deviation of the unit components during the leveling process. The tooling device is equipped with a 200-ton hydraulic jack, which can press steel plates with a thickness range of 8mm~32mm.

[0035] Embodiment 2: As a further improved solution or parallel solution or optional independent solution, an adjustment plate 4 is arranged in the hole included in the column 2, and the adjustment plate 4 is pressed on the beam. The substantial technical effect and implementation process of the technical solution here, i.e., the basic function, are as follows: This embodiment is used to achieve a more stable structure.

[0036] Embodiment 3: As a further improved solution or parallel solution or optional independent solution, a hydraulic oil pump 7 is installed on the crossbeam 1 through the upper connecting plate 5. The substantial technical effect and implementation process of the technical solution here, i.e., the basic function, are as follows: This embodiment provides a specific installation structure, and similar implementation structures are within the protection scope of this patent.

[0037] Embodiment 4: As a further improved solution or a parallel solution or an optional independent solution, a hydraulic oil pump 7 is installed under the crossbeam 1 through the lower connecting plate 6 .

[0038] Embodiment 5: As a further improved solution or parallel solution or optional independent solution, an axle 9 and a directional wheel 12 are arranged on the side of the column 2. The substantial technical effect and implementation process of the technical solution here, i.e., the basic function, are as follows: used to press the steel plate that needs to be corrected.

[0039] Embodiment 6: As a further improved solution or a parallel solution or an optional independent solution, a clamping plate 10 is arranged between the directional wheel 12 and the base 11 , and the bridge steel plate 14 is placed between the clamping plate 10 and the directional wheel 12 .

[0040] Embodiment 7: As a further improved solution or parallel solution or optional independent solution, a lifting lug 13 is arranged above the crossbeam 1. The substantial technical effect and implementation process of the technical solution here, namely the basic function, are as follows: for convenient lifting.

[0041] Innovatively, each of the above effects exists independently, and a set of structures can be used to combine the above results.

[0042] It should be noted that the multiple solutions provided by this patent include the basic solution itself, which are independent of each other and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the protection required.

Claims

1. A bridge steel plate unit cold leveling tooling device, characterized in that: The tooling device comprises two groups of symmetrically arranged columns (2), each column (2) comprises a base (11) below the columns, and the columns (2) and the base (11) form an L-shaped structure as a whole; The upright post (2) includes a hole for passing the crossbeam (1); A hydraulic oil pump (7) is arranged on the crossbeam (1), and the hydraulic oil pump (7) is connected to a hydraulic jack (8). The hydraulic jack (8) is capable of squeezing the bridge steel plate (14) downward.

2. A bridge steel plate unit cold leveling fixture as claimed in claim 1, characterized in that: An adjustment plate (4) is arranged in a hole included in the column (2), and the adjustment plate (4) is pressed on the crossbeam.

3. A bridge steel plate unit cold leveling fixture as claimed in claim 1, characterized in that: A hydraulic oil pump (7) is mounted on the crossbeam (1) via an upper connecting plate (5).

4. A bridge steel plate unit cold leveling fixture as claimed in claim 1, characterized in that: A hydraulic oil pump (7) is installed under the crossbeam (1) via a lower connecting plate (6).

5. A bridge steel plate unit cold leveling fixture as claimed in claim 1, characterized in that: Axles (9) and directional wheels (12) are arranged on the sides of the upright column (2).

6. A bridge steel plate unit cold leveling fixture as claimed in claim 5, characterized in that: A fixture plate (10) is arranged between the directional wheel (12) and the base (11), and a bridge steel plate (14) is placed between the fixture plate (10) and the directional wheel (12).

7. A bridge steel plate unit cold leveling fixture as claimed in claim 1, characterized in that: A lifting lug (13) is arranged above the crossbeam (1).

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