A hub interchange steel box girder construction hoisting structure

Abstract

The present invention provides a hub interchange steel box girder construction hoisting structure, which relates to the technical field of box girder hoisting, including a hoisting connection piece, wherein lifting balance detection pieces are respectively installed at both ends of the hoisting connection piece; the two lifting balance detection pieces are used to detect the stability of the arc box girder; a skew adjustment piece is installed on the hoisting connection piece; the skew adjustment piece is used to adjust the inclination of the arc box girder; a driving device is installed on the skew adjustment piece; the driving device is used to drive the skew adjustment piece to move; the positioning work of the box girder installation can be carried out, and the openable and closable structure can be utilized to improve the installation accuracy of the box girder and avoid the slippage of the inclined box girder, so as to solve the problem that the current steel box girder construction hoisting structure is not convenient for automatic anti-slip limit hoisting, which is easy to cause safety hazards and is not convenient for auxiliary limitation of the fine-tuning range.

Description

Technical Field

[0001] The invention relates to the technical field of box girder hoisting, and in particular to a hub interchange steel box girder construction hoisting structure. Background Art

[0002] In the actual construction of hub interchanges, bridge construction is often used to achieve interchanges. By setting up ramps to connect hubs, it can be guaranteed that straight traffic flow has priority, which requires the use of curved box girder construction technology for construction. Curved box girders usually need to be built into an inclined surface to improve the stability of vehicles turning at large angles. The box girder and the pier need to be installed by hoisting. The current steel box girder construction hoisting structure is not convenient for hoisting balance testing and adjustment. Excessive hoisting offset will cause the box girder to be unable to be installed normally. At the same time, it is not convenient to adapt to the characteristics of the curved box girder that requires inclined installation, which increases the difficulty of installing the curved box girder and is not convenient for automatic anti-slip limit hoisting. The bottom of the box girder and the support are prone to slip under the unbalanced weight of the curved box girder, causing safety hazards. It is also not convenient to assist in limiting the fine-tuning range. Summary of the invention

[0003] The disclosed embodiment relates to a hub interchange steel box girder construction hoisting structure, whose support limiter can carry out the positioning work of the box girder installation, and can utilize the openable and closable structure to improve the installation accuracy of the box girder and prevent the inclined box girder from slipping, so as to solve the problem that the current steel box girder construction hoisting structure is not convenient for automatic anti-slip limiting hoisting, which is easy to cause safety hazards and is not convenient for assisting in limiting the fine-tuning range.

[0004] In the first aspect of the present disclosure, a hub interchange steel box girder construction hoisting structure is provided, including a hoisting connection, both ends of which are respectively equipped with lifting balance detection parts; the two lifting balance detection parts are used to detect the stability of the arc box girder; a skew adjustment part is installed on the hoisting connection; the skew adjustment part is used to adjust the inclination of the arc box girder; a driving device is installed on the skew adjustment part; the driving device is used to drive the skew adjustment part to move; four support limiters are installed at the bottom of the hoisting connection; the four support limiters are symmetrically arranged in a group of two; a hoisting locking part is installed at the bottom of the hoisting connection; a traction control part is installed on the hoisting locking part; the traction control part is installed on the skew adjustment part; the hoisting connection includes: a hoisting main beam and connecting bolts, two connecting bolts are inserted on the hoisting main beam, and nuts are respectively provided on the two connecting bolts.

[0005] In at least some embodiments, the lifting balance detection component includes: a sliding limit plate and a sliding cylinder, the sliding limit plate is fixedly installed on both sides of the bottom beam by bolts; and a sliding cylinder is fixedly installed on the side of the sliding limit plate.

[0006] In at least some embodiments, the lifting connection also includes: a lifting wire rope and a bottom beam, and the lifting wire ropes are fixedly installed at the bottom of the two connecting bolts respectively; the other ends of the two lifting wire ropes are fixedly installed with a bottom beam; the bottom beam is used to support the bottom of the arc-shaped box beam.

[0007] In at least some embodiments, the skew adjustment part includes: a sliding adjustment rack, a lifting wire rope, a sliding mounting shell and an engaging drive gear, the lifting wire ropes are fixedly mounted on both ends of the sliding adjustment rack, and the two ends of the lifting wire ropes are fixedly mounted on the lifting main beam; a sliding mounting shell is slidably mounted on the sliding adjustment rack; a hanging hole is provided on the top of the sliding mounting shell; a meshing drive gear is rotatably mounted inside the sliding mounting shell; the meshing drive gear is meshed with the sliding adjustment rack; the hanging hole on the top of the sliding mounting shell is used to connect a crane.

[0008] In at least some embodiments, the driving device includes: a hydraulic motor, a driving worm and a driving worm wheel, the hydraulic motor is fixedly mounted on the side of the sliding mounting shell; a driving worm is fixedly mounted on the output shaft of the hydraulic motor, and the driving worm is rotatably mounted on the side of the sliding mounting shell through a bracket; a driving worm wheel is rotatably mounted on the side of the sliding mounting shell, and the driving worm wheel is fixedly mounted on the end of the meshing driving gear; the driving worm wheel is meshed with the driving worm; the hydraulic motor is used to control the sliding mounting shell to slide on the sliding adjustment rack.

[0009] In at least some embodiments, the support limiting member further includes: a positioning locking plate, and a positioning locking plate is fixedly installed at the bottom of the limiting slot block; and a row of grooves is provided at the bottom of the positioning locking plate.

[0010] In at least some embodiments, the lifting balance detection component also includes: a micro switch, a support spring, an alarm light and a ground contact column, the micro switch is fixedly installed inside the sliding cylinder; the support spring is sleeved inside the sliding cylinder; the alarm light is fixedly installed on the side of the sliding cylinder; the sliding cylinder is sleeved inside the ground contact column, and the ground contact column is located below the micro switch; the support spring is connected between the sliding cylinder and the ground contact column; the micro switch is electrically connected to the alarm light; the micro switch is used to detect the lifting deflection of the curved box girder.

[0011] In at least some embodiments, the traction control component includes: a traction connecting plate, a disassembly plate and a locking steel wire rope, wherein the traction connecting plate is fixedly installed on the middle sections of the two lifting steel wire ropes; the traction connecting plate is connected to two disassembly plates by bolts, and two locking steel wire ropes are fixedly installed on the sides of the two disassembly plates, and the ends of the four locking steel wire ropes are respectively connected to the two ends of the lifting positioning plate; the locking steel wire rope is used to pull the lifting positioning plate upward.

[0012] In at least some embodiments, the support limiting member includes: a support positioning slide shaft, a centering spring, a limit slot block, a limit slot and a positioning electromagnet, the support positioning slide shaft is fixedly installed on the side of the bottom beam; two centering springs are sleeved on the support positioning slide shaft; a limit slot block is slidably inserted on the support positioning slide shaft; the limit slot block is located between the two centering springs; the limit slot block is slidably installed on the side of the bottom beam; a limit slot is provided on the limit slot block, and the bottom of the limit slot is an inclined structure; the limit slot is used to limit the top of the box beam support; a positioning electromagnet is fixedly embedded on the inner side of the limit slot, and the positioning electromagnet is used to magnetically position the top of the box beam support.

[0013] In at least some embodiments, the lifting locking component includes: a lifting positioning plate, a locking protrusion strip and an anti-accidental touch tension spring, and the lifting positioning plate is provided with two rows of locking protrusion strips; the lifting positioning plate is slidably installed on the inner side of two sliding limit plates; the inner sides of the lifting positioning plate are attached to the bottom beam; two anti-accidental touch tension springs are installed on the lifting positioning plate, and the ends of the two anti-accidental touch tension springs are respectively connected to the sliding limit plates; the two rows of locking protrusion strips are used to plug in four positioning locking plates.

[0014] The present invention provides a hub interchange steel box girder construction hoisting structure, which has the following beneficial effects:

[0015] The present invention adopts a lifting balance detection piece, which can be used to test the balance of the curved steel box girder when lifting and installing the connecting parts, to prevent excessive deviation of the lifting points of the steel box girder. In particular, for the curved steel box girder whose center is not easy to know, an intuitive prompt can be given, which is convenient for the staff to carry out subsequent adjustments. The use of the lifting balance detection piece can prevent the curved steel box girder from being skewed too much during lifting, resulting in the problem of difficulty in subsequent docking with the bridge piers.

[0016] In addition, the use of a drive device in conjunction with a skew adjustment piece can flexibly and quickly adjust the center of gravity of the steel box girder, and the control is simple and convenient. At the same time, the drive is adjusted by using a drive worm in conjunction with a drive worm wheel. The worm wheel has self-locking properties and can ensure stability after adjustment. This structure uses a structure that can accurately adjust the center of gravity, and is more suitable for the installation of curved steel box girders. It can adapt to the inclined state required for the installation of curved steel box girders, and can be directly installed after pre-adjustment, which can increase the lifting accuracy and facilitate accurate inclined docking of adjacent box girders.

[0017] In addition, the use of support limiters can play the role of positioning the box girder supports when hoisting the curved steel box girder, which can make it easier to connect the steel box girder and improve the docking accuracy of the steel box girder. The use of limit slot blocks can be inserted into the side of the box girder supports for limiting, which is convenient for accurate positioning of the steel box girder. At the same time, the inner side of the limit slot block can be used to limit the steel box girder to prevent the steel box girder from slipping.

[0018] In addition, by using traction control components, the lifting traction force of the crane can be used to automatically control the lifting locking components to lock the control limit slot blocks, so that each set of limit slot blocks can remain closed, ensuring the positioning accuracy when lowering and installing the curved steel box girder. After the curved steel box girder is hoisted, it can automatically control the release of the limit, and the positioning electromagnet magnetically fits the top of the steel box girder support, and uses magnetic force to fix the limit. Through the elastic limit of the centering spring, when the staff are welding the steel box girder and other operations, it will not affect the normal fine-tuning of the steel box girder, and it is also convenient to remove the limit slot blocks from the box girder support, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture:

[0022] Figure 1 A schematic diagram showing the overall structure of the present application;

[0023] Figure 2 A schematic diagram showing the bottom structure of the present application;

[0024] Figure 3 A cross-sectional view showing the internal structure of the present application;

[0025] Figure 4 A schematic diagram showing the structure of the lifting connector of the present application is shown;

[0026] Figure 5 A schematic diagram showing the structure of the lifting balance detection member of the present application is shown;

[0027] Figure 6 This application shows Figure 3 A magnified view of the structure of the middle D region;

[0028] Figure 7 This application shows Figure 2 A magnified view of the structure of the middle C region;

[0029] Figure 8 This application shows Figure 2 A magnified view of the structure of the middle E region;

[0030] Fig. 9 A schematic diagram showing the structure of the lifting locking member of the present application is shown;

[0031] Fig.10 A schematic diagram showing the structure of the traction control member of the present application is shown;

[0032] Fig.11 A schematic diagram of the support limiter structure of the present application is shown.

[0033] List of reference numerals:

[0034] 1. Lifting connector; 101. Lifting main beam; 102. Connecting bolt; 103. Lifting wire rope; 104. Bottom beam; 2. Lifting balance detection part; 201. Sliding limit plate; 202. Sliding cylinder; 203. Micro switch; 204. Support spring; 205. Warning light; 206. Touchdown column; 3. Skew adjustment part; 301. Sliding adjustment rack; 3011. Lifting wire rope; 302. Sliding mounting shell; 303. Engaging drive gear; 4. Driving device; 40 1. Hydraulic motor; 402. Driving worm; 403. Driving worm wheel; 5. Support limiter; 501. Support positioning slide shaft; 5011. Centering spring; 502. Limiting slot block; 5021. Limiting slot; 503. Positioning electromagnet; 504. Positioning locking plate; 6. Lifting locking member; 601. Lifting positioning plate; 6011. Locking protrusion strip; 602. Anti-accidental touch tension spring; 7. Traction control member; 701. Traction connecting plate; 702. Disassembly plate; 703. Locking wire rope. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figures 1 to 11 :

[0037] The present invention proposes a hoisting structure for the construction of a hub interchange steel box girder, comprising a hoisting connector 1, wherein lifting balance detection components 2 are respectively installed at both ends of the hoisting connector 1; the two lifting balance detection components 2 are used to detect the stability of the arc box girder; a skew adjustment component 3 is installed on the hoisting connector 1; the skew adjustment component 3 is used to adjust the inclination of the arc box girder; a driving device 4 is installed on the skew adjustment component 3; the driving device 4 is used to drive the skew adjustment component 3 to move; four support limit components 5 are installed at the bottom of the hoisting connector 1; the four support limit components 5 are symmetrically arranged in pairs; a hoisting locking component 6 is installed at the bottom of the hoisting connector 1; a traction control component 7 is installed on the hoisting locking component 6; the traction control component 7 is installed on the skew adjustment component 3; the hoisting connector 1 comprises: a hoisting main beam 101 and a connecting bolt 102, two connecting bolts 102 are inserted into the hoisting main beam 101, and nuts are respectively provided on the two connecting bolts 102.

[0038] In the disclosed embodiment, the lifting connection member 1 also includes: a lifting wire rope 103 and a bottom beam 104, and the lifting wire rope 103 is fixedly installed at the bottom of the two connecting bolts 102 respectively; the other ends of the two lifting wire ropes 103 are fixedly installed with the bottom beam 104; the bottom beam 104 is used to support the bottom of the arc box beam; the lifting balance detection member 2 includes: a sliding limit plate 201 and a sliding cylinder 202, and the sliding limit plate 201 is fixedly installed on both sides of the bottom beam 104 by bolts; The side of the moving limit plate 201 is fixedly mounted with a sliding cylinder 202; the lifting balance detection member 2 also includes: a micro switch 203, a support spring 204, an alarm light 205 and a ground contact post 206, the micro switch 203 is fixedly mounted inside the sliding cylinder 202; the sliding cylinder 202 is sleeved with a support spring 204; the side of the sliding cylinder 202 is fixedly mounted with an alarm light 205; the sliding cylinder 202 is sleeved with a ground contact post 206, and the ground contact post 206 is located at the micro switch 203 At the bottom, the support spring 204 is connected between the sliding cylinder 202 and the ground contact column 206; the micro switch 203 is electrically connected to the alarm light 205; the micro switch 203 is used to detect the skew of the arc box girder when lifting. The lifting balance detection part 2 can be used to test the balance of the arc steel box girder when lifting the lifting connection part 1 to prevent excessive deviation of the lifting point of the steel box girder. Especially for the arc steel box girder whose center is not easy to know, this structure can provide intuitive prompts, which is convenient for the staff to make subsequent adjustments. The lifting balance detection part 2 can prevent the arc steel box girder from being skewed greatly during lifting, resulting in the problem of difficulty in connecting with the bridge piers later. If the suspended arc steel box girder has an unbalanced center of gravity, it will tilt to one side, and the ground contact column 206 will be squeezed and moved upward. Touching the micro switch 203 can control the alarm light 205 to light up and alarm. The overall structure is simple and reasonable. The staff can adjust the skew adjustment part 3 to adjust the lifting center of gravity until the arc steel box girder is lifted in a balanced and stable manner.

[0039] In the disclosed embodiment, the skew adjustment member 3 includes: a sliding adjustment rack 301, a lifting wire rope 3011, a sliding mounting shell 302 and a meshing drive gear 303. The lifting wire ropes 3011 are fixedly mounted at both ends of the sliding adjustment rack 301, and the ends of the two lifting wire ropes 3011 are fixedly mounted on the lifting main beam 101; a sliding mounting shell 302 is slidably mounted on the sliding adjustment rack 301; a hanging hole is provided on the top of the sliding mounting shell 302; a meshing drive gear 303 is rotatably mounted inside the sliding mounting shell 302; the meshing drive gear 303 is meshed with the sliding adjustment rack 301; the sliding mounting shell 302 is provided with a hanging hole; a meshing drive gear 303 is rotatably mounted inside the sliding mounting shell 302; the meshing drive gear 303 is meshed with the sliding adjustment rack 301; The hanging hole on the top of the housing 302 is used to connect the crane; the driving device 4 includes: a hydraulic motor 401, a driving worm 402 and a driving worm wheel 403, the hydraulic motor 401 is fixedly mounted on the side of the sliding housing 302; the driving worm 402 is fixedly mounted on the output shaft of the hydraulic motor 401, and the driving worm 402 is rotatably mounted on the side of the sliding housing 302 through a bracket; the driving worm wheel 403 is rotatably mounted on the side of the sliding housing 302, and the driving worm wheel 403 is fixedly mounted on the end of the meshing driving gear 303; the driving worm wheel 403 is meshed with the driving worm 402; the hydraulic motor 401 is used to control the sliding The movable mounting shell 302 slides on the sliding adjustment rack 301, and the driving device 4 is used in conjunction with the skew adjustment member 3, so that the center of gravity of the steel box girder can be adjusted flexibly and quickly, and the control is simple and convenient. At the same time, the driving worm 402 is used in conjunction with the driving worm wheel 403 to adjust the drive + method. The worm wheel has self-locking properties, which can ensure the stability after adjustment. This structure adopts a structure that can accurately adjust the center of gravity, and is also more suitable for the installation of curved steel box girders. It can adapt to the inclined state required for the installation of curved steel box girders, and can be directly installed after pre-adjustment, which can increase the lifting accuracy and allow the bottom surface of the curved box girder to be placed on the box girder at the same time. The support adopts a pre-adjustment method, and no manual support and adjustment are required, so as to prevent the box girder from falling horizontally in the traditional lifting method. When the steel box girder is lowered, it is inconvenient for the staff to measure the docking accuracy between it and the adjacent obliquely installed curved box girder. When the crane lifts the sliding mounting shell 302, or when the skewness of the steel box girder needs to be adjusted after the curved steel box girder is lifted, the sliding adjustment rack 301 is driven by the hydraulic motor 401 to slide on the sliding mounting shell 302, and the position of the sliding adjustment rack 301 is adjusted. The mass on both sides of the hanging hole on the top of the sliding mounting shell 302 changes, thereby changing the center of gravity of the lifting, thereby realizing adjustment.

[0040] In the embodiment of the present disclosure, the support limiter 5 includes: a support positioning slide shaft 501, a centering spring 5011, a limit slot block 502, a limit slot 5021 and a positioning electromagnet 503. The support positioning slide shaft 501 is fixedly installed on the side of the bottom beam 104; two centering springs 5011 are sleeved on the support positioning slide shaft 501; the limit slot block 502 is slidably inserted on the support positioning slide shaft 501; the limit slot block 502 is located between the two centering springs 5011; the limit slot block 502 is slidably installed on the side of the bottom beam 104; a limit slot 5021 is provided on the limit slot block 502, and the bottom of the limit slot 5021 is an inclined structure; the limit slot 5021 is used to limit the top of the box beam support; a positioning electromagnet 503 is fixedly embedded in the inner side of the limit slot 5021, and the positioning electromagnet 503 is used to magnetically position the top of the box beam support; the support limiter 5 also includes: a fixed The locking plate 504 is fixedly installed at the bottom of the limiting groove block 502; a row of grooves is provided at the bottom of the positioning locking plate 504. The support limiting member 5 can be used to position the box beam support when the curved steel box beam is hoisted in the present structure, which can make it easier to connect the steel box beam and improve the connection accuracy of the steel box beam. Each set of limiting groove blocks 502 can be inserted into the side of the box beam support for limiting, which is convenient for accurate positioning of the steel box beam. At the same time, the inner side of the limiting groove block 502 can be used to limit the steel box beam. The structure is simpler and more reasonable. The positioning electromagnet 503 can be used to prevent the inclined curved steel box beam from slipping and causing safety hazards. The present structure is simple and convenient to use. The limiting groove 5021 on the limiting groove block 502 is slidably inserted into the side of the box beam support, and the positioning electromagnet 503 is used for magnetic positioning to ensure the hoisting and installation accuracy.

[0041] Embodiment 2, on the basis of embodiment 1, the hoisting locking member 6 comprises: a hoisting positioning plate 601, a locking protruding strip 6011 and an anti-mistaken-touch tension spring 602, the hoisting positioning plate 601 is provided with two rows of locking protruding strips 6011; the hoisting positioning plate 601 is slidably mounted on the inner side of the two sliding limit plates 201; the inner sides of the hoisting positioning plate 601 are attached to the bottom beam 104; two anti-mistaken-touch tension springs 602 are installed on the hoisting positioning plate 601, and the ends of the two anti-mistaken-touch tension springs 602 are respectively connected to the sliding limit plate 201; the two rows of locking protruding strips 6011 are used to plug the four positioning locking plates 50 4; the traction control member 7 includes: a traction connection plate 701, a disassembly plate 702 and a locking steel wire rope 703, wherein the traction connection plate 701 is fixedly mounted on the middle section of the two lifting steel wire ropes 3011; two disassembly plates 702 are connected to the traction connection plate 701 by bolts, and two locking steel wire ropes 703 are fixedly mounted on the sides of the two disassembly plates 702, respectively, and the ends of the four locking steel wire ropes 703 are respectively connected to the two ends of the lifting positioning plate 601; the locking steel wire rope 703 is used to pull the lifting positioning plate 601 upward, and the traction control member 7 can be used to automatically control the lifting by utilizing the lifting traction force of the crane. The locking member 6 locks and controls the limit slot block 502, so that each group of limit slot blocks 502 can be kept closed, ensuring the positioning accuracy when lowering and installing the curved steel box girder, and can automatically control the release of the limit after the curved steel box girder is hoisted, which is convenient for disassembly of this structure. The structure is simple and reasonable, and automatic control can ensure the positioning protection effect. When lifting the lifting connector 1, the crane pulls the lifting wire rope 3011 to straighten it. At this time, the lifting wire rope 3011 pulls the traction connecting plate 701 to rise, which can drive the locking wire rope 703 to pull the lifting positioning plate 601 to move up, and insert the positioning lock through the locking protrusion strip 6011 The bottom of the stop plate 504 is locked with the limit slot block 502. At this time, the spacing of the limit slot block 502 is fixed. The bottom inclined structure of the limit slot 5021 is used to insert the box beam support. The positioning electromagnet 503 is magnetically attached to the top of the steel box beam support. The limit slot block 502 is used to limit the steel box beam support to prevent accidents such as slipping of the steel box beam. The elastic limit of the centering spring 5011 is used. The range in which the limit slot block 502 can slide left and right on the side of the bottom beam 104 is the maximum range of the box beam activity that can be manually adjusted. When the staff are welding the steel box beam and other operations, it will not affect the normal fine-tuning of the steel box beam, thereby improving practicality.

[0042] The working principle of this embodiment is as follows: first, the existing box beam support is pre-installed on the bridge pier by bolts, two sets of lifting connectors 1 are arranged and respectively installed at the two ends of the arc-shaped steel box beam, and two cranes are used to cooperate in the lifting work, the bottom beam 104 is placed at the bottom of the arc-shaped steel box beam, the connecting bolts 102 are passed through the lifting main beam 101 and tightened with nuts for installation, the steel wire rope of the crane is docked with the hanging hole on the top of the sliding installation shell 302, and the two disassembly plates 702 are connected to the traction connection plate 701 by bolts. When lifting the lifting connector 1, the steel box beam is initially placed at a height of the ground, and the ends of the two extrusion contacting columns 206 are just close to the ground, so that the extrusion contacting columns 206 can be squeezed when the steel beam is skewed. The ground is squeezed. At this time, if the suspended arc-shaped steel box girder has an unbalanced center of gravity, it will tilt to one side, and the sliding limit plate 201 on the tilted side will be driven to move downward, squeezing the ground column 206. The ground column 206 is squeezed and moves upward, compressing the support spring 204, touching the micro switch 203, and the alarm light 205 can be controlled to light up and alarm. At this time, the center of gravity needs to be adjusted. When the skewness of the steel box girder needs to be adjusted, the driving worm 402 set can be driven by the hydraulic motor 401 to rotate, and the driving worm wheel 403 can be controlled to drive the meshing driving gear 303 to rotate and drive the sliding adjustment rack 301 to slide on the sliding mounting shell 302. The position of the sliding adjustment rack 301 is adjusted, and the center of gravity of the hoisting is changed. The curved steel box girder can then return to its normal horizontal state. When the steel box girder needs to be skewed to a certain extent during docking, the sliding adjustment rack 301 can be driven by the hydraulic motor 401 to move and adjust the same as mentioned above; the centering spring 5011 on the support positioning slide shaft 501 can be used to control the limit slot block 502 to be in the center position. When lifting the lifting connection 1, the crane pulls the lifting wire rope 3011 to straighten it. At this time, the lifting wire rope 3011 pulls the traction connecting plate 701 to rise, which can drive the locking wire rope 703 to pull the lifting positioning plate 601 to move upward, and the locking protrusion strip 6011 is inserted into the bottom of the positioning locking plate 504 to lock the limit slot block 502. At this time, the spacing between the limit slot blocks 502 is fixed to ensure that the lifting connection 1 is lifted and lowered. To ensure the accuracy of the initial position, the length of the lifting wire rope 3011 between the traction connection plate 701 and the lifting main beam 101 is redundant, so the traction connection plate 701 can be driven to move up first and then the lifting main beam 101 can be driven to move up, and the bottom inclined surface structure of the limit groove 5021 can be used to insert the box beam support for positioning first, and then the lifting main beam 101 is also loaded and lifted. After the crane wire rope is continuously lowered, the lifting wire rope 3011 is no longer pulled. At this time, under the pull of the anti-mistouch tension spring 602, the lifting positioning plate 601 drives the locking protrusion strip 6011 to separate from the positioning locking plate 504; the positioning electromagnet 503 can be controlled to magnetically fit the top of the steel box beam support, and the magnetic force is used for fitting and positioning;It can be directly fastened with bolts and installed with the box beam support. The limit slot block 502 is used to limit the steel box beam support. If the steel box beam slips to one side, the limit slot block 502 slides a short distance on the bottom beam 104. When the centering spring 5011 is fully compressed, the limit slot block 502 will no longer slide and can be stuck on the top of the box beam support for limiting. The slidable limit slot block 502 also serves to facilitate the staff to fine-tune the installation position. After the arc-shaped steel box beam is adjusted to the right position by a crane or other equipment, it is directly fastened with bolts to the box beam support again to achieve safety limiting. The two sets of limit slot blocks 502 slide outwards respectively, and can be separated from the steel box beam base. The nuts on the connecting bolts 102 are removed, and the connecting bolts of the two disassembly plates 702 on the traction connecting plate 701 are removed, and the structure can be completely disassembled. ;

[0043] In this article, there are a few points to note:

[0044] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0045] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0046] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A hub interchange steel box girder construction hoisting structure, comprising a hoisting connector (1), wherein both ends of the hoisting connector (1) are respectively provided with hoisting balance detection components (2); the characteristics are: The two lifting balance detection components (2) are used to detect the stability of the curved box girder; The hoisting connection piece (1) is provided with a skew adjusting piece (3); the skew adjusting piece (3) is used to adjust the inclination of the arc-shaped box beam; the skew adjusting piece (3) is provided with a driving device (4); the driving device (4) is used to drive the skew adjusting piece (3) to move; Four support stoppers (5) are installed at the bottom of the lifting connection piece (1); the four support stoppers (5) are symmetrically arranged in pairs; a lifting locking piece (6) is installed at the bottom of the lifting connection piece (1); A traction control component (7) is mounted on the lifting locking component (6); the traction control component (7) is mounted on the skew adjustment component (3); The hoisting connection member (1) comprises: a hoisting main beam (101) and connecting bolts (102); two connecting bolts (102) are inserted into the hoisting main beam (101), and nuts are respectively provided on the two connecting bolts (102); The hoisting connection member (1) further comprises: a hoisting steel wire rope (103) and a bottom beam (104); the bottoms of the two connection bolts (102) are respectively fixedly mounted with a hoisting steel wire rope (103); the other ends of the two hoisting steel wire ropes (103) are fixedly mounted with a bottom beam (104); the bottom beam (104) is used to support the bottom of the arc-shaped box beam; The support limiting member (5) comprises: a support positioning slide shaft (501), a centering spring (5011), a limiting slot block (502), a limiting slot (5021) and a positioning electromagnet (503); the support positioning slide shaft (501) is fixedly mounted on the side of the bottom beam (104); two centering springs (5011) are sleeved on the support positioning slide shaft (501); the limiting slot block (502) is slidably inserted on the support positioning slide shaft (501); the limiting slot block (502) is 2) located between the two centering springs (5011); the limiting slot block (502) is slidably mounted on the side of the bottom beam (104); a limiting slot (5021) is provided on the limiting slot block (502), and the bottom of the limiting slot (5021) is an inclined structure; the limiting slot (5021) is used to limit the top of the box beam support; a positioning electromagnet (503) is fixedly embedded inside the limiting slot (5021), and the positioning electromagnet (503) is used to magnetically position the top of the box beam support.

2. The hub interchange steel box girder construction hoisting structure according to claim 1 is characterized in that: The lifting balance detection component (2) comprises: a sliding limit plate (201) and a sliding cylinder (202); the sliding limit plate (201) is fixedly mounted on both sides of the bottom beam (104) by means of bolts; and the sliding cylinder (202) is fixedly mounted on the side of the sliding limit plate (201).

3. The hub interchange steel box girder construction hoisting structure according to claim 2 is characterized in that: The lifting balance detection component (2) further comprises: a micro switch (203), a support spring (204), an alarm light (205) and a ground contact column (206); the micro switch (203) is fixedly mounted inside the sliding cylinder (202); the support spring (204) is sleeved inside the sliding cylinder (202); the alarm light (205) is fixedly mounted on the side of the sliding cylinder (202); the sliding cylinder (202) is sleeved inside the ground contact column (206), and the ground contact column (206) is located below the micro switch (203); the support spring (204) is connected between the sliding cylinder (202) and the ground contact column (206); the micro switch (203) is electrically connected to the alarm light (205); and the micro switch (203) is used to detect the deflection of the arc box girder during lifting.

4. The hub interchange steel box girder construction hoisting structure according to claim 2 is characterized in that: The skew adjustment member (3) comprises: a sliding adjustment rack (301), a lifting wire rope (3011), a sliding mounting shell (302) and a meshing drive gear (303); the lifting wire ropes (3011) are fixedly mounted on both ends of the sliding adjustment rack (301), and the ends of the two lifting wire ropes (3011) are fixedly mounted on the lifting main beam (101); a sliding mounting shell (302) is slidably mounted on the sliding adjustment rack (301); a hanging hole is provided at the top of the sliding mounting shell (302); a meshing drive gear (303) is rotatably mounted inside the sliding mounting shell (302); the meshing drive gear (303) is meshed with the sliding adjustment rack (301); and the hanging hole at the top of the sliding mounting shell (302) is used for connecting a crane.

5. The hub interchange steel box girder construction hoisting structure according to claim 4 is characterized in that: The driving device (4) comprises: a hydraulic motor (401), a driving worm (402) and a driving worm wheel (403); the hydraulic motor (401) is fixedly mounted on the side of the sliding mounting shell (302); the driving worm (402) is fixedly mounted on the output shaft of the hydraulic motor (401), and the driving worm (402) is rotatably mounted on the side of the sliding mounting shell (302) through a bracket; the driving worm wheel (403) is rotatably mounted on the side of the sliding mounting shell (302), and the driving worm wheel (403) is fixedly mounted on the end of the meshing driving gear (303); the driving worm wheel (403) is meshed with the driving worm (402); the hydraulic motor (401) is used to control the sliding mounting shell (302) to slide on the sliding adjustment rack (301).

6. The hub interchange steel box girder construction hoisting structure according to claim 4 is characterized in that: The support limiting member (5) further comprises: a positioning locking plate (504), the bottom of the limiting slot block (502) having a positioning locking plate (504) fixedly mounted thereon; the bottom of the positioning locking plate (504) is provided with a row of grooves.

7. The hub interchange steel box girder construction hoisting structure according to claim 6 is characterized in that: The hoisting locking component (6) comprises: a hoisting positioning plate (601), a locking protrusion strip (6011) and an anti-accidental touch tension spring (602); the hoisting positioning plate (601) is provided with two rows of locking protrusion strips (6011); the hoisting positioning plate (601) is slidably mounted on the inner sides of two sliding limit plates (201); the inner sides of the hoisting positioning plate (601) are attached to the bottom beam (104); two anti-accidental touch tension springs (602) are installed on the hoisting positioning plate (601), and the ends of the two anti-accidental touch tension springs (602) are respectively connected to the sliding limit plate (201); the two rows of locking protrusion strips (6011) are used to plug in four positioning locking plates (504).

8. The hub interchange steel box girder construction hoisting structure according to claim 7 is characterized in that: The traction control component (7) comprises: a traction connection plate (701), a disassembly plate (702) and a locking steel wire rope (703); the traction connection plate (701) is fixedly mounted on the middle sections of two lifting steel wire ropes (3011); the two disassembly plates (702) are connected to the traction connection plate (701) by bolts, and two locking steel wire ropes (703) are fixedly mounted on the sides of the two disassembly plates (702), respectively; the ends of the four locking steel wire ropes (703) are respectively connected to the two ends of the lifting positioning plate (601); the locking steel wire ropes (703) are used to pull the lifting positioning plate (601) upward.

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