Steel-concrete composite beam box beam positioning device

Abstract

The utility model belongs to the technical field of installation and adjustment of box girders, particularly relates to a box girder positioning device of a steel-concrete composite girder, and provides the following scheme aiming at the problems that an existing steel box girder positioning device does not have an adjusting function and cannot be adjusted when a steel box girder deviates, so that repeated hoisting adjustment is needed, and the working efficiency is reduced. The device comprises a supporting plate, six rectangular legs are arranged at the top of the supporting plate and used for supporting, rectangular grooves are formed in the bottoms of the six rectangular legs correspondingly, hydraulic air cylinders are arranged in the six rectangular grooves correspondingly, supporting blocks are installed on output shafts of the six hydraulic air cylinders correspondingly, and rolling wheels are arranged at the bottoms of the six supporting blocks correspondingly; the rotating mechanism is mounted at the top of the supporting plate; and the positioning and supporting mechanism is used for positioning the steel box girder. According to the utility model, multi-azimuth angle adjustment can be carried out on the steel box girder, so that alignment by using a crane for hoisting for multiple times is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of box beam installation and adjustment, in particular to a steel-concrete composite box beam positioning device. Background Art

[0002] Steel-concrete composite beam boxes are prefabricated composite components consisting of a top plate, bottom plate, and sidewalls. They are a common structural form for long-span bridges, with the bottom plate being a prefabricated composite component that bears the entire load. The concrete strength grades for the top and bottom plates of the composite box are C30, C35, C40, C45, and C50, and the reinforcement is ribbed or spiral deformed steel.

[0003] During the construction of steel box girders, adjacent steel box girders need to be welded in sequence. In order to stably, quickly and accurately connect adjacent steel box girders, it is usually necessary to pre-erect a cradle to perform preliminary positioning of the steel box girders, and then weld and assemble them.

[0004] However, during use, due to the existence of lifting errors, the lifting position needs to be adjusted multiple times in order to align the steel box girder. The existing steel box girder positioning device does not have an adjustment function and cannot be adjusted when the steel box girder deviates, resulting in multiple lifting adjustments, which reduces work efficiency. Summary of the Invention

[0005] The purpose of the utility model is to solve the shortcomings of the existing steel box girder positioning device that has no adjustment function and cannot be adjusted when the steel box girder deviates, resulting in the need for multiple hoisting adjustments and reduced work efficiency, and to propose a steel-concrete composite beam box girder positioning device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A steel-concrete composite box beam positioning device, comprising:

[0008] A support plate, wherein six rectangular legs are provided on the top of the support plate for support, and rectangular grooves are provided at the bottoms of the six rectangular legs, hydraulic cylinders are provided in the six rectangular grooves, support blocks are installed on the output shafts of the six hydraulic cylinders, and rollers are provided at the bottoms of the six support blocks;

[0009] A rotating mechanism is mounted on the top of the support plate;

[0010] The positioning support mechanism is used to position the steel box girder and is connected to the rotating mechanism.

[0011] Preferably, multiple first support rods are installed horizontally between the six rectangular legs, and multiple second support rods are installed obliquely, and the multiple second support rods are arranged obliquely. Multiple hydraulic connection holes are opened on the six rectangular legs for connecting the hydraulic cylinder to the hydraulic pipe.

[0012] Preferably, the rotating mechanism includes a support ring, which is fixedly mounted on the top of the support plate. A rotating ring is slidably mounted on the outer side of the support ring. The rotating ring and the positioning support mechanism are provided with a plurality of wiring holes on the support plate.

[0013] Preferably, a support groove is provided at the bottom of the rotating ring, the support ring is slidably connected to the inner wall of the support groove, a plurality of balls are embedded in the top of the support ring, and the plurality of balls are slidably connected to the inner wall of the support groove; the balls are provided to reduce the friction between the rotating ring and the support groove.

[0014] Preferably, two linear motors are symmetrically fixedly installed on the outer side of the rotating ring, and an annular groove is opened on the outer side of the support ring. The output shafts of the two linear motors are both located in the annular groove, and the two linear motors are used to clamp and fix the annular groove. A servo motor is fixedly installed on the top of the support plate, and the output shaft of the servo motor is fixedly installed with the positioning support mechanism.

[0015] Preferably, the positioning support mechanism includes a U-shaped plate, which is fixedly mounted on the output shaft of the servo motor, and threaded rods are threadedly connected on both sides of the U-shaped plate, handles are fixedly mounted on the outer ends of the two threaded rods, and clamping plates are rotatably mounted on the inner ends of the two threaded rods through bearings.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] This solution uses a crane to place the steel box girder on top of the U-shaped plate. By turning two handles to drive the two threaded rods to rotate, the spacing between the two clamping plates can be adjusted to accommodate the placement limits of steel box girders of different sizes. In order to align the two steel box girders, adjustments need to be made to control the pressure supply of six hydraulic cylinders. The six hydraulic cylinders push the six support blocks downward, and the six support blocks push the six rollers downward and contact the ground. The six rollers push the entire structure to move horizontally forward, backward, left, and right, thereby adjusting the position of the steel box girder.

[0018] This solution uses a servo motor to drive the U-shaped plate to adjust the angle, so that the steel box girder can be adjusted horizontally. The steel box girder can be adjusted in multiple directions, avoiding the need for multiple crane lifts for alignment, thereby improving work efficiency.

[0019] The utility model can adjust the steel box girder in multiple directions and angles, avoids the need for multiple liftings by a crane for alignment, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a steel-concrete composite box beam positioning device proposed in the utility model;

[0021] Figure 2 The utility model proposed Figure 1 Schematic diagram of the structure viewed from above;

[0022] Figure 3 The utility model proposed Figure 1 Schematic diagram of the structure after the positioning support mechanism is disassembled;

[0023] Figure 4 The utility model proposed Figure 3 Schematic diagram of the cross-sectional structure;

[0024] Figure 5 This is a structural diagram of the positioning support mechanism and its related parts proposed in the utility model.

[0025] In the figure: 1. Support plate; 11. Wiring hole; 2. Rectangular leg; 21. Hydraulic connection hole; 22. Second support rod; 23. First support rod; 24. Rectangular groove; 25. Hydraulic cylinder; 26. Support block; 27. Roller; 3. Rotating mechanism; 31. Support ring; 32. Ball; 33. Servo motor; 34. Rotating ring; 35. Support groove; 36. Linear motor; 4. Positioning support mechanism; 41. U-shaped plate; 42. Clamping plate; 43. Threaded rod; 44. Handle. DETAILED DESCRIPTION

[0026] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all the embodiments. Example

[0027] Reference Figure 1-5 , a steel-concrete composite box beam positioning device, comprising:

[0028] Support plate 1, with six rectangular legs 2 provided on the top for support, each of the six rectangular legs 2 has a rectangular slot 24 at the bottom, each of the six rectangular slots 24 has a hydraulic cylinder 25, each of the six hydraulic cylinders 25 has a support block 26 installed on its output shaft, and each of the six support blocks 26 has a roller 27 at its bottom;

[0029] The rotating mechanism 3 is installed on the top of the support plate 1;

[0030] The positioning support mechanism 4 is used to position the steel box girder and is connected to the rotating mechanism 3 .

[0031] Reference Figure 1 、 Figure 2In this embodiment, multiple first support rods 23 are installed horizontally between the six rectangular legs 2, and multiple second support rods 22 are installed obliquely. The multiple second support rods 22 are arranged obliquely. Multiple hydraulic connection holes 21 are opened on the six rectangular legs 2 for connecting the hydraulic cylinder 25 to the hydraulic pipe.

[0032] Reference Figure 3 、 Figure 5 In this embodiment, the rotating mechanism 3 includes a support ring 31, which is fixedly installed on the top of the support plate 1. A rotating ring 34 is slidably installed on the outer side of the support ring 31. The rotating ring 34 and the positioning support mechanism 4 are provided with multiple wiring holes 11 on the support plate 1.

[0033] Reference Figure 3 、 Figure 5 In this embodiment, a support groove 35 is provided at the bottom of the rotating ring 34, and the support ring 31 is slidingly connected to the inner wall of the support groove 35. A plurality of balls 32 are embedded in the top of the support ring 31, and the plurality of balls 32 are all slidingly connected to the inner wall of the support groove 35; the balls 32 are provided to reduce the friction between the rotating ring 34 and the support groove 35.

[0034] Reference Figure 5 In this embodiment, two linear motors 36 are symmetrically fixedly installed on the outer side of the rotating ring 34, and an annular groove is opened on the outer side of the support ring 31. The output shafts of the two linear motors 36 are both located in the annular groove. The two linear motors 36 are used to clamp and fix the annular groove. A servo motor 33 is fixedly installed on the top of the support plate 1, and the output shaft of the servo motor 33 is fixedly installed with the positioning support mechanism 4.

[0035] Reference Figure 1 In this embodiment, the positioning support mechanism 4 includes a U-shaped plate 41, which is fixedly installed on the output shaft of the servo motor 33. Threaded rods 43 are threadedly connected to both sides of the U-shaped plate 41. Handles 44 are fixedly installed on the outer ends of the two threaded rods 43, and clamping plates 42 are rotatably installed on the inner ends of the two threaded rods 43 through bearings.

[0036] Working principle: When in use, the electrical appliance is connected to the power supply and controller, the six hydraulic cylinders 25 are connected to the hydraulic pipes, and the steel box girder is placed on the top of the U-shaped plate 41 by using a crane. By turning the two handles 44, the two threaded rods 43 are driven to rotate, and the spacing between the two clamping plates 42 is adjusted to adapt to the placement limit of steel box girders of different sizes. In order to align the two steel box girders, adjustment is required. The six hydraulic cylinders 25 are controlled to supply pressure. The six hydraulic cylinders 25 push the six support blocks 26 to move downward. The six support blocks 26 push the six rollers 27 to move downward and contact the ground. The six rollers 27 push the entire body to move horizontally forward, backward, left and right, thereby adjusting the position of the steel box girder. The servo motor 33 drives the U-shaped plate 41 to adjust the angle, so that the horizontal angle of the steel box girder is adjusted. The steel box girder can be adjusted in multiple directions, avoiding the need to use a crane for multiple lifting for alignment, thereby improving work efficiency. All structures in this application can be selected according to the material and length according to actual usage. The accompanying drawings are schematic structural diagrams, and the specific actual dimensions can be adjusted appropriately.

[0037] The above is only a preferred specific implementation method of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with this technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, and they should be covered by the protection scope of this embodiment.

Claims

1. A steel-concrete composite box beam positioning device, characterized in that: include: A support plate (1), wherein six rectangular legs (2) are provided on the top of the support plate (1) for supporting, and rectangular grooves (24) are provided at the bottoms of the six rectangular legs (2), hydraulic cylinders (25) are provided in the six rectangular grooves (24), support blocks (26) are installed on the output shafts of the six hydraulic cylinders (25), and rollers (27) are provided at the bottoms of the six support blocks (26); A rotating mechanism (3) is mounted on top of the support plate (1); The positioning support mechanism (4) is used for positioning the steel box girder and is connected to the rotating mechanism (3).

2. A steel-concrete composite box beam positioning device according to claim 1, characterized in that: A plurality of first support rods (23) are installed transversely between the six rectangular legs (2), and a plurality of second support rods (22) are installed obliquely, and the plurality of second support rods (22) are arranged obliquely.

3. The steel-concrete composite box beam positioning device according to claim 1, characterized in that: A plurality of hydraulic connection holes (21) are provided on each of the six rectangular legs (2) for connecting the hydraulic cylinder (25) to the hydraulic pipe.

4. The steel-concrete composite box beam positioning device according to claim 1, characterized in that: The rotating mechanism (3) comprises a support ring (31), the support ring (31) is fixedly mounted on the top of the support plate (1), a rotating ring (34) is slidably mounted on the outer side of the support ring (31), the rotating ring (34) is positioned with the support mechanism (4), and a plurality of wiring holes (11) are provided on the support plate (1).

5. The steel-concrete composite box beam positioning device according to claim 4, characterized in that: A support groove (35) is provided at the bottom of the rotating ring (34), the support ring (31) is slidably connected to the inner wall of the support groove (35), a plurality of balls (32) are embedded in the top of the support ring (31), and the plurality of balls (32) are slidably connected to the inner wall of the support groove (35); the balls (32) are provided to reduce the friction between the rotating ring (34) and the support groove (35).

6. The steel-concrete composite box beam positioning device according to claim 4, characterized in that: Two linear motors (36) are symmetrically fixedly mounted on the outer side of the rotating ring (34), and an annular groove is provided on the outer side of the supporting ring (31), and the output shafts of the two linear motors (36) are both located in the annular groove.

7. The steel-concrete composite box beam positioning device according to claim 1, characterized in that: A servo motor (33) is fixedly mounted on the top of the support plate (1), and an output shaft of the servo motor (33) is fixedly mounted on the positioning support mechanism (4).

8. The steel-concrete composite box beam positioning device according to claim 1, characterized in that: The positioning support mechanism (4) comprises a U-shaped plate (41), the U-shaped plate (41) being fixedly mounted on the output shaft of the servo motor (33), threaded rods (43) being threadedly connected to both sides of the U-shaped plate (41), handles (44) being fixedly mounted on the outer ends of the two threaded rods (43), and clamping plates (42) being rotatably mounted on the inner ends of the two threaded rods (43) via bearings.

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