Adjusting device for welding deformation of steel box girder

Abstract

The utility model discloses an adjusting device for welding deformation of a steel box girder, which comprises a supporting mechanism, an adjusting mechanism and a moving mechanism. Each stand column is of an L-shaped structure, the horizontal edge of each stand column is located below, the vertical edge of each stand column is provided with a vertical sliding way, the two stand columns are arranged in a left-right spaced mode, and the horizontal edges of the two stand columns are opposite. The cross beam is horizontally arranged, and the two ends of the cross beam penetrate through the sliding ways of the two stand columns respectively. The adjusting mechanism comprises a jack, the jack is movably arranged at the bottom of the cross beam and located between the two stand columns, and the telescopic end of the jack faces downwards. The moving mechanism is fixedly connected with the bottom face of the cross beam and located between the two stand columns. The device is simple in structure, convenient to use and capable of preventing deformation caused by welding of the steel box girder.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge construction technical field especially relates to a kind of steel box girder welding deformation adjusting device. BACKGROUND

[0002] Steel structure bridge is widely used in bridge construction due to its light structure, fast construction speed, large span capacity and other advantages. Steel box girder, as an important part of steel structure bridge, its construction quality directly affects the carrying capacity and service life of bridge. However, steel box girder is prone to deformation during welding due to the influence of welding heat and residual stress, which leads to changes in cross-sectional size, shape and position of steel box girder, and further affects the structural performance and appearance quality of steel box girder. Therefore, the existing method cannot effectively solve the problem of steel box girder welding deformation, and a new device needs to be developed to simply and conveniently control the welding deformation of steel box girder and improve the construction quality and efficiency of steel box girder. SUMMARY

[0003] The utility model aims at providing a kind of steel box girder welding deformation adjusting device to solve the technical problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A kind of steel box girder welding deformation adjusting device, including support mechanism, adjusting mechanism, moving mechanism, the support mechanism includes crossbeam, stand column;The stand column is L-shaped structure, its horizontal side is below, vertical slide is opened in vertical side, two stand columns are spaced apart, and the horizontal sides of two stand columns are opposite;The crossbeam is horizontally arranged, and its two ends pass through the slide of two stand columns respectively;The adjusting mechanism includes jack, the jack is movably arranged at the bottom of crossbeam and located between two stand columns, and its telescopic end is downward;The moving mechanism is fixedly connected with the bottom surface of crossbeam and located between two stand columns.

[0006] Further, the support mechanism further includes limiting plate;The limiting plate is vertically arranged on the left and right sides of crossbeam.

[0007] Further, the adjusting mechanism further includes connecting seat;The connecting seat is movably sleeved on the crossbeam;The top surface of jack is fixedly connected with the bottom surface of connecting seat.

[0008] Further, the adjusting mechanism is spaced apart by two.

[0009] Further, the moving mechanism includes connecting frame and moving wheel;The connecting frame is vertically arranged, and its upper part is provided with a slot, and the connecting frame is fixedly clamped on the front and rear sides of crossbeam through the slot;The moving wheel is arranged at the bottom of connecting frame.

[0010] Further, the moving mechanism is spaced left and right with two, and is located between two adjusting mechanisms.

[0011] Further, the moving mechanism further comprises a muscle plate; the muscle plate is horizontally arranged on the front and back sides of the upper side of the opposite side of the two connecting frames.

[0012] Further, it further comprises a lifting lug; the lifting lug is arranged on the cross beam.

[0013] The beneficial effects of the present application compared with the prior art are:

[0014] 1. The utility model discloses a supporting mechanism and adjusting mechanism are set up, and the jack of adjusting mechanism is pressed to the top surface of steel box beam top plate, and then the cross beam is moved by the jack, and the cantilever of the two sides of steel box beam top plate is pressed by the column driven by the cross beam, and the jack is matched with the column, so that the deformation of steel box beam in the welding process can be prevented, the structural performance and appearance quality of steel box beam are improved, the structure is simple, convenient to use, can adapt to steel box beams of different sizes and shapes, and can be flexibly adjusted according to actual conditions, so that the deformation of steel box beam top plate is controlled within the allowable range.

[0015] 2. The utility model discloses a moving mechanism is set up, and the mobility and support of the device are improved, and the flexibility is improved. DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is the structural schematic diagram of the column of the utility model;

[0018] Figure 3 It is the structural schematic diagram of the connecting frame of the utility model;

[0019] Figure 4 It is the schematic diagram when the utility model is connected with steel box beam;

[0020] In the drawings, 1 is a supporting mechanism;11 is a cross beam;12 is a column;121 is a slide;13 is a limiting plate;

[0021] 2 is an adjusting mechanism;21 is a jack;22 is a connecting seat;

[0022] 3 is a moving mechanism;31 is a connecting frame;32 is a moving wheel;33 is a muscle plate;

[0023] 4 is a lifting lug. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly and obviously, the following preferred embodiments are referred to the drawings and are given, and the utility model is further explained in detail. However, it should be indicated that many details listed in the specification are only for making the reader have a thorough understanding of one or more aspects of the utility model, and the aspects of the utility model can be realized even without these specific details.

[0025] As shown in Figures 1-4 The adjusting device for the welding deformation of the steel box girder comprises a supporting mechanism 1, an adjusting mechanism 2 and a moving mechanism 3. The supporting mechanism 1 comprises a cross beam 11 and a stand 12. The stand 12 is in an L-shaped structure, the horizontal side of the stand 12 is at the lower side, and a vertical slide 121 is formed on the vertical side of the stand 12. Two stands 12 are spaced apart left and right, and the horizontal sides of the two stands 12 are opposite to each other. The cross beam 11 is horizontally arranged, and the two ends of the cross beam 11 pass through the slides 121 of the two stands 12 respectively and can move up and down in the slides 121. The adjusting mechanism 2 comprises a jack 21, the jack 21 is movably arranged at the bottom of the cross beam 11 and located between the two stands 12, and the telescopic end of the jack 21 is downward. The moving mechanism 3 is fixedly connected with the bottom surface of the cross beam 11 and located between the two stands 12. The height of the cross beam 11 is adjusted by the jack 21, so that the horizontal top surfaces of the two stands 12 in the supporting mechanism 1 abut against the bottom portions of the two sides of the cantilever of the top plate of the steel box girder respectively. At this time, the jack 21 presses the top plate of the steel box girder downward to prevent the top plate of the steel box girder from deforming upward, and the stand 12 abuts against the cantilever of the top plate of the steel box girder upward to prevent the top plate of the steel box girder from deforming downward, so that the deformation of the steel box girder in the welding process is prevented.

[0026] The stand 12 is connected by two L-shaped plates, the two L-shaped plates are arranged in an interval from front to back, the interval between the two L-shaped plates forms the slide 121, and the two horizontal top surfaces are connected by a horizontal connecting plate through welding, so that the horizontal sides of the two L-shaped plates are connected with each other. When the stand 12 abuts against the cantilever of the top plate of the steel box girder, the top surface of the connecting plate is in contact with the bottom surface of the cantilever of the top plate of the steel box girder. The upper portions of the vertical sides of the two L-shaped plates are connected with each other by welding a front and back horizontal baffle on the left and right sides respectively, so that the vertical sides of the two L-shaped plates are connected with each other. The baffle can limit the moving distance of the cross beam 11 upward.

[0027] The supporting mechanism 1 further comprises a limiting plate 13, and the limiting plate 13 is vertically arranged on the left and right sides of the cross beam 11. The limiting plate 13 is used for limiting the left and right movement of the cross beam 11.

[0028] The adjusting mechanism 2 further comprises a connecting seat 22, the connecting seat 22 is in a rectangular structure with a left and right through hole in the middle and is movably arranged on the cross beam 11, and the top surface of the jack 21 is fixedly connected with the bottom surface of the connecting seat 22. The connecting seat 22 can move left and right on the cross beam 11 and drive the jack 21 to move left and right, so as to adjust the position of the jack 21 on the cross beam 11.

[0029] Two adjustment mechanisms 2 are provided at intervals on the left and right sides. The two adjustment mechanisms 2 can ensure the stability when adjusting the crossbeam 11.

[0030] The jack 21 is an electric hydraulic jack 21. An electric pump station is provided in the middle of the top surface of the crossbeam 11. The electric pump station is electrically connected to the jack 21 and is used to simultaneously control the extension and retraction of the extension ends of the two jacks 21.

[0031] The moving mechanism 3 includes a connecting frame 31 and moving wheels 32. The connecting frame 31 is vertically arranged and has a slot on its upper part. The connecting frame 31 is fixedly engaged with the front and rear sides of the crossbeam 11 through the slot. The moving wheels 32 are located at the bottom of the connecting frame 31. The moving mechanism 3 facilitates the movement of the entire device.

[0032] Two moving mechanisms 3 are provided at intervals on the left and right, and are located between the two adjusting mechanisms 2. The two moving mechanisms 3 can ensure the movement stability of the device.

[0033] The moving mechanism also includes stiffening plates 33; the stiffening plates 33 are horizontally arranged on the front and rear sides of the upper part of the two connecting frames 31 on opposite sides. The stiffening plates 33 are used to improve the stability of the connecting frames 31.

[0034] It also includes lifting lugs 4; the lifting lugs 4 are provided on the crossbeam 11. The lifting lugs 4 facilitate the hoisting of the entire device onto the top plate of the steel box girder.

[0035] The working principle of this utility model is as follows:

[0036] Initially, the two columns 12 are located at the leftmost and rightmost positions of the crossbeam 11. The device is hoisted to the top plate of the steel box girder using the lifting lugs 4. Then, the columns 12 in the two supporting devices are moved towards the middle of the crossbeam 11, so that the horizontal edge of the columns 12 is below the cantilever of the top plate. The two jacks 21 are started simultaneously by the electric pump station, causing the telescopic rods of the jacks 21 to extend and drive the crossbeam 11 to move upward. When the crossbeam 11 moves upward to the top of the column 12 slide rail 121, it continues to move upward, driving the columns 12 to move upward, so that the top surface of the horizontal edge of the column 12 abuts against the cantilevered bottom surface of the steel box girder top plate. At this time, the jacks 21 press against the top surface of the top plate, and the columns 12 abut against the cantilevered bottom surface of the steel box girder top plate, and welding can be carried out. During the welding process, the jacks 21 and the columns 12 prevent the top plate from deforming upward and downward, respectively. Meanwhile, during the welding process, by adjusting the telescopic length of the telescopic end of jack 21, fine adjustments can be made according to the welding deformation to ensure that the deformation of the steel box girder is within the allowable range, thereby effectively controlling the welding deformation and improving the structural performance and appearance quality of the steel box girder.

[0037] The above merely is preferred implementation manner of the present application, it should be pointed out, for ordinary skilled person in the technical field, on the premise of not departing from the principle of the present application, can also make several improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the present application.

Claims

1. A steel box girder welding deformation adjusting device, comprising a supporting mechanism, an adjusting mechanism and a moving mechanism, characterized in that: The supporting mechanism comprises a crossbeam and a stand column; the stand column is of L-shaped structure, the horizontal side of the L-shaped structure is at the lower side, a vertical slide is formed on the vertical side, two stand columns are arranged at intervals left and right, and the horizontal sides of the two stand columns are opposite to each other; the crossbeam is horizontally arranged, and the two ends of the crossbeam pass through the slides of the two stand columns respectively; the adjusting mechanism comprises a jack, the jack is movably arranged at the bottom of the crossbeam and located between the two stand columns, and the telescopic end of the jack is downward; the moving mechanism is fixedly connected with the bottom surface of the crossbeam and located between the two stand columns.

2. The device for adjusting the welding deformation of a steel box girder according to claim 1, characterized in that: The supporting mechanism further comprises a limiting plate; the limiting plate is vertically arranged on the left and right sides of the crossbeam.

3. The device for adjusting the welding deformation of a steel box girder according to claim 1, characterized in that: The adjusting mechanism further comprises a connecting seat; the connecting seat is movably sleeved on the crossbeam; and the top surface of the jack is fixedly connected with the bottom surface of the connecting seat.

4. The device for adjusting the welding deformation of a steel box girder according to claim 3, characterized in that: The adjusting mechanism is arranged at intervals left and right.

5. The device for adjusting the welding deformation of a steel box girder according to claim 4, characterized in that: The moving mechanism comprises a connecting frame and a moving wheel; the connecting frame is vertically arranged, the upper part of the connecting frame is provided with a slot, and the connecting frame is fixedly clamped on the front and rear sides of the crossbeam through the slot; and the moving wheel is arranged at the bottom of the connecting frame.

6. The device for adjusting the welding deformation of a steel box girder according to claim 5, characterized in that: The moving mechanism is arranged at intervals left and right and located between the two adjusting mechanisms.

7. The device for adjusting the welding deformation of a steel box girder according to claim 6, characterized in that: The moving mechanism further comprises a rib plate; the rib plate is horizontally arranged on the front and rear sides of the upper part of the opposite side of the two connecting frames.

8. The device for adjusting the welding deformation of a steel box girder according to claim 1, characterized in that: Further comprising a lifting lug; the lifting lug is arranged on the crossbeam.

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