Ultra-wide steel box girder mounting and positioning device

Abstract

The utility model relates to the technical field of box girder installation, and provides an ultra-wide steel box girder installation positioning device which comprises a pressure-bearing shell, a main machine shell is fixedly connected to the top of the inner surface of the pressure-bearing shell, a threaded rod is rotationally connected to the bottom of the inner surface of the main machine shell, and the outer surface of the threaded rod is in threaded connection with an inner threaded block. A connecting rod is fixedly connected to the outer surface of the internal thread block, a limiting ring is fixedly connected to the end, away from the internal thread block, of the connecting rod, a limiting rod is fixedly connected to the bottom of the inner surface of the main case, and the outer surface of the limiting rod is movably embedded in the inner surface of the limiting ring. Compared with the prior art, the device is provided with the outward-extending clamping fixing structure, the device can be fixed inside the steel box girder in an outward-extending and embedded mode through a plurality of clamping rods, so that installation and positioning of the steel box girder are achieved, it can be guaranteed that the steel box girder can be accurately installed at the designed position, the installation error is small, and the probability that the steel box girder shakes, slides off and other dangerous situations after installation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of box girder installation, in particular to an installation and positioning device for an ultra-wide steel box girder. Background Art

[0002] In bridge construction, the installation and positioning device of the steel box girder plays the following important roles: ensuring that the steel box girder can be accurately installed in the designed position to reduce errors, and by stabilizing and fixing the steel box girder, reducing the probability of dangerous situations such as shaking and sliding of the steel box girder during the installation process, making the installation work more efficient and orderly, and reducing the time wasted due to position adjustment. It can monitor and control the installation process of the steel box girder in real time, discover and correct problems in time, and ensure that the construction quality meets the design requirements. In short, the installation and positioning device of the steel box girder plays a vital role in bridge construction, and it is of great significance to ensure the quality, safety and construction efficiency of the bridge.

[0003] However, in the prior art, for example, China Publication No.: CN117657954B, "A docking installation device for hoisting and positioning a continuous steel box girder", the invention discloses a docking installation device for hoisting and positioning a continuous steel box girder in the field of steel box girder hoisting technology, including a fixed frame, an adjusting mechanism is provided on the lower side of the fixed frame, a hoisting plate is provided on the adjusting mechanism, a bidirectional screw is rotatably connected in the hoisting plate, a first telescopic rod is fixedly connected to one end of the bidirectional screw, the first telescopic rod is rotatably connected to the fixed frame, a plurality of hoisting mechanisms are slidably connected to the lower side of the hoisting plate, two of which are threadedly connected to the bidirectional screw, an anti-shake mechanism is provided on the lower side of the hoisting plate, the anti-shake mechanism is meshingly connected to the bidirectional screw, a positioning mechanism is provided on one side of the fixed frame, and a driving mechanism is provided on the fixed frame.

[0004] However, this device does not have an externally extending clamping fixing structure. It cannot extend outward through multiple clamping rods and be embedded and fixed inside the steel box girder to achieve the installation and positioning of the steel box girder. It cannot ensure that the steel box girder can be accurately installed in the designed position. The installation error is large, which increases the probability of dangerous situations such as shaking and sliding of the steel box girder after installation. The device does not have a retracting and disassembly structure, and cannot be quickly disassembled after installation. When the use demand of the bridge changes or the bridge needs to be dismantled and rebuilt, the entire bridge needs to be destroyed, the maintenance and dismantling costs are large, and the labor cost is increased. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that a plurality of clamping rods cannot be extended outward and embedded and fixed inside the steel box girder to achieve installation and positioning of the steel box girder, and it is impossible to ensure that the steel box girder can be accurately installed in the designed position. The installation error is large, which increases the probability of dangerous situations such as shaking and sliding of the steel box girder after installation. It cannot be quickly disassembled after installation. When the use demand of the bridge changes or the bridge needs to be dismantled and rebuilt, the entire bridge needs to be destroyed, the maintenance and dismantling costs are large, and the labor cost problem is increased.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an ultra-wide steel box girder installation and positioning device, comprising a pressure-bearing shell, the top of the inner surface of the pressure-bearing shell is fixedly connected with a main shell, the bottom of the inner surface of the main shell is rotatably connected with a threaded rod, the outer surface of the threaded rod is threadedly connected with an internal thread block, the outer surface of the internal thread block is fixedly connected with a connecting rod, one end of the connecting rod away from the internal thread block is fixedly connected with a limiting ring, the bottom of the inner surface of the main shell is fixedly connected with a limiting rod, the outer surface of the limiting rod is movably embedded in the inner surface of the limiting ring, the top of the internal thread block is provided with a positioning sleeve, the inner surface of the positioning sleeve is movably embedded with a positioning rod, the top of the positioning rod is fixedly connected to the inner surface of the pressure-bearing shell, the outer surface of the positioning rod is movably sleeved with a spring, the top of the spring is fixedly connected to the inner surface of the pressure-bearing shell, the bottom of the spring is fixedly connected to the top of the positioning sleeve, when the positioning sleeve moves upward, it will drive one end of the connecting rod through the first shaft plate, the connecting rod is inside the through groove, and the other end of the connecting rod will pass through the second shaft plate to push the fixed plate and the clamping rod.

[0007] As a preferred embodiment, the outer surface of the positioning sleeve is fixedly connected with multiple first axis plates, and the outer surface of the first axis plates is rotatably connected with two connecting rods. When the positioning sleeve moves upward, it drives one end of the connecting rod through the first axis plate.

[0008] As a preferred embodiment, a plurality of through slots are formed on the outer side of the main housing, the outer surfaces of the two connecting rods are arranged inside the through slots, and the connecting rods move inside the through slots.

[0009] As a preferred embodiment, one end of the two connecting rods away from the first axis plate is rotatably connected to the second axis plate, the side of the second axis plate away from the connecting rod is fixedly connected to the fixing plate, the side of the fixing plate away from the second axis plate is fixedly connected to the clamping rod, and the other end of the connecting rod will push the fixing plate and the clamping rod through the second axis plate.

[0010] As a preferred embodiment, the outer surface of the clamping rod is movably sleeved with a stabilizing sleeve, the outer surfaces of multiple stabilizing sleeves are fixedly embedded in the outer side of the pressure shell, the clamping rod extends outward from the inside of the stabilizing sleeve and is clamped in the inside of the steel box girder.

[0011] As a preferred embodiment, a worm wheel is fixedly sleeved on the outer surface of the threaded rod, a hollow worm is meshingly connected to the outer surface of the worm wheel, a power rod is fixedly embedded inside the hollow worm, and the rotating hollow worm will drive the threaded rod to rotate under the meshing action with the worm wheel.

[0012] As a preferred embodiment, one end of the power rod is rotatably connected to the inner surface of the main casing, and a motor is fixedly connected to the inner surface of the main casing. The output end of the motor is fixedly connected to one end of the power rod, and the motor will drive the power rod to rotate inside the main casing when powered on.

[0013] As a preferred embodiment, a support is fixedly connected to the top of the pressure shell. The support is made of rubber. The support has good elasticity and shock-absorbing properties and can effectively absorb the vibration generated by the bridge during use.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] 1. The utility model is provided with an outwardly extending clamping fixing structure, which can be extended through a plurality of clamping rods and embedded and fixed inside the steel box girder, thereby realizing the installation and positioning of the steel box girder, and can ensure that the steel box girder can be accurately installed in the designed position with a small installation error, thereby reducing the probability of dangerous situations such as shaking and sliding of the steel box girder after installation.

[0016] 2. The utility model is provided with a retractable disassembly structure, which can be quickly disassembled after installation. When the use demand of the bridge changes or the bridge needs to be dismantled and rebuilt, there is no need to destroy the entire bridge, the maintenance and disassembly cost is low, and the labor cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an installation and positioning device for an ultra-wide steel box girder provided by the utility model;

[0018] Figure 2 A schematic diagram of the cross-sectional structure of a pressure shell in an ultra-wide steel box girder installation and positioning device provided by the utility model;

[0019] Figure 3 A schematic diagram of the disassembled structure of an ultra-wide steel box girder installation and positioning device provided by the utility model;

[0020] Figure 4 A schematic diagram of the cross-sectional structure of a main housing in an ultra-wide steel box girder installation and positioning device provided by the utility model;

[0021] Figure 5 The utility model provides a schematic diagram of the cross-sectional structure of a main casing in an ultra-wide steel box girder installation and positioning device.

[0022] Legend:

[0023] 1. Pressure shell; 2. Main shell; 3. Threaded rod; 4. Internal thread block; 5. Connecting rod; 6. Limiting ring; 7. Limiting rod; 8. Positioning sleeve; 9. Positioning rod; 10. Spring; 11. First shaft plate; 12. Connecting rod; 13. Through groove; 14. Second shaft plate; 15. Fixed plate; 16. Clamping rod; 17. Stabilizing sleeve; 18. Worm gear; 19. Hollow worm; 20. Power rod; 21. Motor; 22. Support. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 5 The utility model provides a technical solution: an installation and positioning device for an ultra-wide steel box beam, comprising a pressure-bearing shell 1, a main shell 2 is fixedly connected to the top of the inner surface of the pressure-bearing shell 1, a threaded rod 3 is rotatably connected to the bottom of the inner surface of the main shell 2, an inner thread block 4 is threadedly connected to the outer surface of the threaded rod 3, a connecting rod 5 is fixedly connected to the outer surface of the inner thread block 4, a limiting ring 6 is fixedly connected to one end of the connecting rod 5 away from the inner thread block 4, a limiting rod 7 is fixedly connected to the bottom of the inner surface of the main shell 2, and the outer surface of the limiting rod 7 is movably embedded in the limiting ring 6. The inner surface and the top of the internal thread block 4 are provided with a positioning sleeve 8, the inner surface of the positioning sleeve 8 is movably embedded with a positioning rod 9, the top of the positioning rod 9 is fixedly connected to the inner surface of the pressure-bearing shell 1, and the outer surface of the positioning rod 9 is movably sleeved with a spring 10, the top of the spring 10 is fixedly connected to the inner surface of the pressure-bearing shell 1, and the bottom of the spring 10 is fixedly connected to the top of the positioning sleeve 8. The rotating thread will drive the internal thread block 4 to move upward only along the axial direction of the limiting rod 7, push the positioning sleeve 8 to move upward along the direction of the positioning rod 9, and compress the spring 10.

[0026] like Figures 1 to 5 As shown, the outer surface of the positioning sleeve 8 is fixedly connected to multiple first axis plates 11, and the outer surface of the first axis plate 11 is rotatably connected to two connecting rods 12. When the positioning sleeve 8 moves upward, it will drive one end of the connecting rod 12 through the first axis plate 11.

[0027] like Figures 1 to 5 As shown, a plurality of through slots 13 are formed on the outer side of the main housing 2 , and the outer surfaces of the two connecting rods 12 are arranged inside the through slots 13 , and the connecting rods 12 move inside the through slots 13 .

[0028] like Figures 1 to 5 As shown, one end of the two connecting rods 12 away from the first axis plate 11 is rotatably connected to the second axis plate 14, the side of the second axis plate 14 away from the connecting rod 12 is fixedly connected to the fixing plate 15, the side of the fixing plate 15 away from the second axis plate 14 is fixedly connected to the clamping rod 16, and the other end of the connecting rod 12 will pass through the second axis plate 14 to push the fixing plate 15 and the clamping rod 16.

[0029] like Figures 1 to 5 As shown, the outer surface of the clamping rod 16 is movably sleeved with a stabilizing sleeve 17, and the outer surfaces of multiple stabilizing sleeves 17 are fixedly embedded on the outer side of the pressure shell 1. The clamping rod 16 extends outward from the inside of the stabilizing sleeve 17 and is clamped inside the steel box girder.

[0030] like Figures 1 to 5 As shown, a worm wheel 18 is fixedly sleeved on the outer surface of the threaded rod 3, and a hollow worm 19 is meshingly connected to the outer surface of the worm wheel 18. A power rod 20 is fixedly embedded inside the hollow worm 19. The rotating hollow worm 19 will drive the threaded rod 3 to rotate under the meshing action with the worm wheel 18.

[0031] like Figures 1 to 5 As shown, one end of the power rod 20 is rotatably connected to the inner surface of the main housing 2, and a motor 21 is fixedly connected to the inner surface of the main housing 2. The output end of the motor 21 is fixedly connected to one end of the power rod 20. When the motor 21 is energized, it will drive the power rod 20 to rotate inside the main housing 2.

[0032] like Figures 1 to 5 As shown, a support 22 is fixedly connected to the top of the pressure shell 1. The support 22 is made of rubber. Rubber has good elasticity and shock-absorbing properties and can effectively absorb the vibration generated by the bridge during use.

[0033] Working principle: first place the device on the top of the pier, then hoist the steel box girder to the outer surface of the pressure shell 1. After the pre-docking is completed, start the external power supply of the motor 21. The model of the motor 21 is: DOY106, and the rated power is: 750W. After the motor 21 is energized, it will drive the power rod 20 to rotate inside the main housing 2. The hollow worm 19 that rotates with the power rod 20 will drive the threaded rod 3 to rotate under the meshing action of the worm wheel 18. The rotating thread will drive the internal thread block 4. The limit ring 6 can only move along the axial direction of the limit rod 7. The limit ring 6 is fixed to one side of the internal thread block 4 through the connecting rod 5, so the rotating thread will drive the internal thread block 4 to move upward only along the axial direction of the limit rod 7, pushing the positioning sleeve 8 to move upward along the direction of the positioning rod 9 and compressing the spring 10. The spring 10 stores elastic potential energy. When the positioning sleeve 8 moves upward, it will be brought by the first shaft plate 11 At one end of the movable connecting rod 12, the connecting rod 12 moves inside the through groove 13, and the other end of the connecting rod 12 passes through the second shaft plate 14. Pushes the fixed plate 15 and the clamping rod 16, so that the clamping rod 16 extends outward from the inside of the stabilizing sleeve 17 and is clamped in the inside of the steel box girder, thereby realizing the installation and positioning of the steel box girder, which can ensure that the steel box girder can be accurately installed in the designed position, with a small installation error, and reduces the probability of dangerous situations such as shaking and sliding of the steel box girder after installation. When the internal thread block 4 moves downward, the spring 10 will release elastic potential energy, and the clamping rod 16 will shrink back, and it can be quickly disassembled after installation. When the use demand of the bridge changes or the bridge needs to be dismantled and rebuilt, there is no need to destroy the entire bridge, the maintenance and dismantling cost is low, and the labor cost is reduced. The support 22 at the top of the device has good elasticity and shock absorption performance, and can effectively absorb the vibration generated by the bridge during use.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An installation and positioning device for an ultra-wide steel box girder, comprising a pressure shell (1), characterized in that: The top of the inner surface of the pressure-bearing shell (1) is fixedly connected to the main housing (2); the bottom of the inner surface of the main housing (2) is rotatably connected to a threaded rod (3); the outer surface of the threaded rod (3) is threadedly connected to an internal thread block (4); the outer surface of the internal thread block (4) is fixedly connected to a connecting rod (5); one end of the connecting rod (5) away from the internal thread block (4) is fixedly connected to a limiting ring (6); the bottom of the inner surface of the main housing (2) is fixedly connected to a limiting rod (7); The outer surface is movably embedded in the inner surface of the limiting ring (6); a positioning sleeve (8) is arranged on the top of the internal thread block (4); a positioning rod (9) is movably embedded in the inner surface of the positioning sleeve (8); the top of the positioning rod (9) is fixedly connected to the inner surface of the pressure-bearing shell (1); the outer surface of the positioning rod (9) is movably sleeved with a spring (10); the top of the spring (10) is fixedly connected to the inner surface of the pressure-bearing shell (1); and the bottom of the spring (10) is fixedly connected to the top of the positioning sleeve (8).

2. The ultra-wide steel box girder installation and positioning device according to claim 1 is characterized in that: A plurality of first shaft plates (11) are fixedly connected to the outer surface of the positioning sleeve (8), and two connecting rods (12) are rotatably connected to the outer surface of the first shaft plate (11).

3. The ultra-wide steel box girder installation and positioning device according to claim 2 is characterized in that: A plurality of through slots (13) are provided on the outer side of the main housing (2), and the outer surfaces of the two connecting rods (12) are arranged inside the through slots (13).

4. The ultra-wide steel box girder installation and positioning device according to claim 3 is characterized in that: One end of the two connecting rods (12) away from the first shaft plate (11) is rotatably connected to the second shaft plate (14), the side of the second shaft plate (14) away from the connecting rod (12) is fixedly connected to a fixing plate (15), and the side of the fixing plate (15) away from the second shaft plate (14) is fixedly connected to a clamping rod (16).

5. The ultra-wide steel box girder installation and positioning device according to claim 4 is characterized in that: The outer surface of the clamping rod (16) is movably sleeved with a stabilizing sleeve (17), and the outer surfaces of a plurality of stabilizing sleeves (17) are fixedly embedded on the outer side of the pressure-bearing shell (1).

6. The ultra-wide steel box girder installation and positioning device according to claim 1, characterized in that: A worm wheel (18) is fixedly sleeved on the outer surface of the threaded rod (3), a hollow worm (19) is meshedly connected to the outer surface of the worm wheel (18), and a power rod (20) is fixedly embedded inside the hollow worm (19).

7. The ultra-wide steel box girder installation and positioning device according to claim 6, characterized in that: One end of the power rod (20) is rotatably connected to the inner surface of the main housing (2), the inner surface of the main housing (2) is fixedly connected to a motor (21), and the output end of the motor (21) is fixedly connected to one end of the power rod (20).

8. The ultra-wide steel box girder installation and positioning device according to claim 1, characterized in that: A support (22) is fixedly connected to the top of the pressure-bearing shell (1), and the support (22) is made of rubber.

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