Bridge tower hoisting slab staggering prevention control method based on visual technology

Abstract

The invention provides a bridge tower hoisting slab staggering prevention control method based on a visual technology, and belongs to the technical field of building hoisting. Comprising a foundation, a tower base is installed at the top of the foundation, a cable bent tower body is installed at the top of the tower base, a tower body is further installed at the top of the foundation, a cab is installed at the top of the tower body, a cargo boom is installed at the end of the tower body, and a loading vehicle is slidably connected to the bottom of the cargo boom. By arranging the multi-dimensional adjusting assembly and the visual lifting appliance assembly, the influence of environmental vibration and self factors on lifting is reduced, the stability of steel shell section lifting is achieved through dynamic deviation correction, the slab staggering phenomenon is reduced, the section assembling precision is improved, meanwhile, multi-point contact supporting is achieved, the probability of lifting deformation is reduced, and the production efficiency is improved. The high-definition camera monitors the gap between the butt joint faces of the sections in real time, the risk of slab staggering is avoided, the rigid support counteracts local dislocation, caused by manufacturing errors or deformation, of the steel shell sections, and the impact load of the hoisting tail section is shared.

Description

Technical Field

[0001] This invention relates to the field of building hoisting technology, and in particular to a method for preventing misalignment during bridge tower hoisting based on vision technology. Background Art

[0002] Vision-based bridge tower crane hoisting refers to the use of visual feedback devices and vision technology to assist and control the hoisting operations of bridge tower cranes. This technology acquires image information in real time during the hoisting process by installing cameras and other visual sensors on the tower crane, helping operators to control the crane more accurately and ensuring the safety and precision of the hoisting operation.

[0003] Tower crane anti-misalignment measures refer to a series of measures and methods taken during tower crane hoisting operations to prevent errors or deviations during the hoisting process. These measures include real-time monitoring of the status of steel shell segments, including data such as height, amplitude, rotation angle, wind speed, tilt angle, and load, to prevent misalignment or tilting at the assembly and connection points of the steel shell segments, thus ensuring the safety and accuracy of the hoisting operation.

[0004] When using existing bridge tower cranes for hoisting, the irregular block structure of bridge segments can easily lead to uneven stress and angular misalignment, causing misalignment during assembly, which affects accuracy and stability. At the same time, the lack of pre-support for steel shell segments further exacerbates misalignment due to stress changes during hoisting. Environmental factors and machine vibrations make manual intervention difficult, making it hard to quickly and stably assemble segments in mid-air, prolonging operation time and increasing the risk of misalignment.

[0005] Therefore, this application provides a vision-based method for controlling the anti-misalignment of bridge tower hoisting to meet the requirements. Summary of the Invention

[0006] The technical problem this invention aims to solve is to provide a vision-based method for controlling bridge tower hoisting to prevent misalignment. This addresses the issue that existing bridge segments are mostly irregular blocks, which easily lead to uneven stress and angular tilting misalignment, causing misalignment during assembly, affecting accuracy and stability. Furthermore, the lack of pre-support in steel shell segments exacerbates misalignment due to stress changes during hoisting, while environmental factors and machine vibrations make manual intervention difficult. This makes it challenging to quickly and stably assemble segments in mid-air, extending operation time and increasing the risk of misalignment.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A method for preventing misalignment during bridge tower hoisting based on vision technology includes the following steps:

[0009] S1: First, assemble and splice the various sections of the steel shell segment in the assembly area. After the splicing is completed, measure the steel shell segment. After the measurement is correct, use a leveling plate to adjust it. Then, weld and fix the connection points of the various sections of the steel shell segment.

[0010] S2: Subsequently, after the various segments of the steel shell section are welded and fixed, temporary matching parts are installed at the edges of the steel shell section to pre-assemble the segments with the steel shell section on the main body of the tower. After verifying the assembly accuracy, the temporary matching parts of the steel shell section are installed.

[0011] S3: Then the steel shell segments are assembled and wait for the lifting equipment of the bridge tower hoisting anti-misalignment platform to be used for hoisting. The steel shell segments are lifted onto the main body of the tower by the lifting equipment. The angle is adjusted to keep the steel shell segments horizontal and stable, which facilitates the subsequent assembly.

[0012] S4: Finally, the anti-misalignment lifting device of the bridge tower is used to contact the surface of the steel shell segment and provide side support to prevent the misalignment of the steel shell segment. Then, the steel shell segment in a stable state on the lifting device is assembled with the steel shell segment already installed on the main body of the cable tower and fixed with high-strength bolts to complete the assembly.

[0013] This application also provides another technical solution: a lifting device for bridge tower hoisting with anti-misalignment based on vision technology, which further includes a foundation, a tower base installed on the top of the foundation, a main tower body installed on the top of the tower base, a tower body installed on the top of the foundation, a driver's cab installed on the top of the tower body, a lifting boom installed at the end of the tower body, a cargo vehicle slidably connected to the bottom of the lifting boom, and a steel shell segment provided at the bottom of the cargo vehicle; a multi-dimensional adjustment component is installed at the bottom of the cargo vehicle, which is used to adjust the angle tilt of the steel shell segment during hoisting; a visual lifting device component is installed at the bottom of the multi-dimensional adjustment component, which is used to hoist the steel shell segment and abut against the surface of the steel shell segment; a support positioning component is installed at the end of the visual lifting device component, which is used to provide auxiliary support to the side of the steel shell segment and to provide auxiliary positioning when splicing it with the main tower body; the multi-dimensional adjustment component is installed on the top of the visual lifting device component, and the visual lifting device component is installed at one end of the support positioning component.

[0014] Optionally, the multi-dimensional adjustment component includes a rotating disk, which is installed at the bottom of the cargo vehicle. Two sets of rail racks are installed at the bottom of the rotating disk. The ends of the two sets of rail racks are slidably connected to sliding frames. Gears are rotatably connected inside the sliding frames. A connecting platform is installed at the bottom of the two sets of sliding frames.

[0015] Optionally, a drive motor is installed on the top of the connecting platform, the output end of the drive motor is connected to the end of the gear, a support frame is installed on the bottom of the connecting platform, a hydraulic cylinder is installed on one side of the support frame, a toggle plate is installed on the output end of the hydraulic cylinder, and a connecting roller is rotatably connected to one end of the toggle plate.

[0016] Optionally, a flipping plate is rotatably connected to the end of the connecting roller. The flipping plate is acute-angled. A rotating shaft is rotatably connected to one end of the flipping plate. The rotating shaft is installed on one side of the support frame. A connecting block is installed at the bottom of the flipping plate. A gap is left between the connecting block and the support frame. A drive platform is installed at the bottom of the connecting block.

[0017] Optionally, the visual hoist assembly includes a bracket, which is installed at both ends of the drive platform. A servo motor is installed at the bottom of the bracket, and a threaded rod is installed at the output end of the servo motor. A first sliding plate is threadedly connected to the bottom of the threaded rod. The bottom of the first sliding plate is made of rubber, and a first sliding groove is slidably connected to both ends of the first sliding plate. The first sliding groove is installed at the bottom of the bracket.

[0018] Optionally, support plates are installed at the bottom of both ends of the two sets of brackets, cylinders are installed at the top two ends of the support plates, hooks are installed at the output ends of the two sets of cylinders, elastic top frames are installed on the inner walls of both ends of the support plates, and two viewing lenses are installed on one side of the support plates.

[0019] Optionally, the bottom of the support plate is equipped with two second sliding grooves, the inner walls of the second sliding grooves are slidably connected to a second sliding plate, the bottom of the second sliding plate is equipped with multiple springs, the bottoms of the multiple springs are connected to a push block, and the bottom of the push block is made of rubber.

[0020] Optionally, the support positioning assembly includes a base, which is installed at both ends of the bracket. A telescopic rod is installed at one end of the base, and a transition block is installed at one end of the telescopic rod. A telescopic frame is sleeved on the surface of the telescopic rod, and both ends of the telescopic frame are connected to the surface of the base and the surface of the transition block, respectively. A long rod is installed at the bottom of the transition block.

[0021] Optionally, a fixing block is installed at the bottom of the long rod, a torsion spring frame is installed at the end of the fixing block, a short flipping arm is installed at the end of the torsion spring frame, a first long rotating roller is rotatably connected to the end of the short flipping arm, a long flipping arm is installed at the other end of the torsion spring frame, and a second long rotating roller is rotatably connected to the end of the long flipping arm.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] In the above solution, by setting up multi-dimensional adjustment components, when the assembled steel shell segments are hoisted, a rotating disc achieves 360-degree rotation adjustment. Combined with the micro-movement of the tracked rack, it corrects the skewing caused by uneven force on irregular blocks during hoisting in real time. At the same time, it eliminates the phenomenon of misalignment during assembly. The tilt angle is adjusted by hydraulic cylinders, which can accurately and actively compensate for the segment tilt angle deviation caused by wind load or vibration, reduce cumulative errors, and improve the overall assembly accuracy. Compared with manual intervention, mechanical adjustment can shorten the high-altitude assembly time, reduce the impact of environmental vibration on positioning, and the dynamic correction achieves the stability of the steel shell segment hoisting, reduces the occurrence of misalignment, improves the accuracy of segment assembly, speeds up the operation cycle, and improves the efficiency of operation.

[0024] By setting up a visual lifting device assembly, after the segment is hooked and lifted, the first and second sliding plates elastically push against the steel shell segment, providing multi-point contact support, dispersing local stress, and reducing the probability of lifting deformation. At the same time, the mutual support of multiple contact points improves the stability of the segment during lifting. Furthermore, cylinder drive enables four-corner fine adjustment, real-time compensation for offsets caused by wind load or inertia, and maintaining segment level deviation. Meanwhile, a high-definition camera monitors the gap between the segment mating surfaces in real time, guiding adjustments through image recognition technology to avoid human observation errors and mitigate the risk of misalignment. It is also linked with the tower crane torque limiter to automatically lock the adjustment mechanism, ensuring safety. Through pre-support and dynamic adjustment, the amount of misalignment can be controlled, reducing the scale of misalignment and improving lifting efficiency.

[0025] By setting up a support positioning component, when the segments are hoisted, the first and second long rotating rollers on both sides of the segment form multi-point contact support, effectively dispersing the lateral load generated by the segment's swaying, reducing the offset caused by wind load or inertia, and the rolling contact of the rollers can reduce the frictional resistance when the segment moves, ensuring the controllability of the hoisting path and avoiding positioning deviations caused by the swing of the wire rope. At the same time, when the segment descends to near the main bridge body, the second long rotating roller prioritizes contact with the installed segment, adjusting its posture through rolling friction to achieve precise docking guidance, and the rigid support of the rollers can offset the local misalignment caused by manufacturing errors or deformation of the steel shell segment, reducing the amount of subsequent adjustment work, and the pre-positioning function of the support positioning component distributes the impact load of the final stage of hoisting, preventing the segment from directly colliding with the bridge structure, protecting the interface welds or bolted connections to achieve the accuracy of splicing. Attached Figure Description

[0026] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0027] Figure 1This is a front-view three-dimensional structural diagram of the lifting device for the bridge tower hoisting anti-misalignment platform based on vision technology according to the present invention;

[0028] Figure 2 This is a three-dimensional structural diagram of the lifting device for the bridge tower hoisting anti-misalignment platform based on vision technology according to the present invention from another perspective.

[0029] Figure 3 This is a frontal plan view of the lifting device for the bridge tower hoisting anti-misalignment platform based on vision technology according to the present invention;

[0030] Figure 4 This is a schematic diagram of the three-dimensional structure of the lifting arm of the present invention;

[0031] Figure 5 This is a three-dimensional structural diagram showing the positional relationship between the first sliding plate and the steel shell segment of the present invention;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of the second long roller of the present invention;

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of the multi-dimensional adjustment component of the present invention;

[0034] Figure 8 This is a three-dimensional structural diagram illustrating the positional relationship between the flip plate and the rotating shaft of the present invention;

[0035] Figure 9 This is a three-dimensional structural diagram showing the positional relationship between the bracket and the support plate of the present invention;

[0036] Figure 10 This is a three-dimensional structural diagram of the visual lifting device assembly of the present invention;

[0037] Figure 11 This is a three-dimensional structural diagram illustrating the positional relationship between the bracket and the base of the present invention;

[0038] Figure 12 This is a schematic diagram of the three-dimensional structure of the support positioning component of the present invention.

[0039] Figure label:

[0040] 1. Foundation; 2. Tower base; 3. Main body of the tower; 4. Tower body; 5. Operator's cab; 6. Multi-dimensional adjustment component; 61. Rotary disc; 62. Rail rack; 63. Sliding frame; 64. Connecting platform; 65. Gear; 66. Drive motor; 67. Support frame; 68. Hydraulic cylinder; 69. Actuating plate; 610. Connecting roller; 611. Tilting plate; 612. Rotating shaft; 613. Connecting block; 614. Drive platform; 7. Visual lifting device component; 71. Bracket; 72. Servo motor; 73. Threaded rod; 74. First sliding plate; 75. ... 76. Slide rail; 77. Support plate; 78. Cylinder; 79. Hook; 70. Elastic top frame; 710. Viewing lens; 711. Second slide rail; 712. Second sliding plate; 713. Spring; 714. Pushing block; 8. Support positioning assembly; 81. Base; 82. Telescopic rod; 83. Adapter block; 84. Telescopic frame; 85. Long rod; 86. Fixing block; 87. Torsion spring frame; 88. Short tilting arm; 89. First long rotating roller; 810. Long tilting arm; 811. Second long rotating roller; 9. Lifting arm; 10. Cargo trolley; 11. Steel shell segment.

[0041] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. DETAILED DESCRIPTION

[0042] The following describes in detail a vision-based bridge tower hoisting anti-misalignment control method provided by the present invention with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0043] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0044] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0045] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0046] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0047] Embodiments of the present invention provide a method for preventing misalignment during bridge tower hoisting based on vision technology, comprising the following steps:

[0048] S1: First, assemble and splice the various segments of the steel shell section 11 in the assembly area. After the splicing is completed, measure the steel shell section 11. After the measurement is correct, use the leveling plate to adjust it. Then, weld and fix the connection of the various segments on the steel shell section 11.

[0049] S2: Subsequently, after each segment of the steel shell section 11 is welded and fixed, temporary matching parts are installed at the edge of the steel shell section 11 to pre-assemble the segments with the steel shell section 11 on the main body of the tower. After checking the assembly accuracy, the installation of the temporary matching parts of the steel shell section 11 is completed.

[0050] S3: Then the steel shell segment 11 is assembled and waits for the lifting equipment of the bridge tower hoisting anti-misalignment platform to be hoisted. The steel shell segment 11 is hoisted onto the main body of the tower 3 by the lifting equipment. The angle is adjusted to keep the steel shell segment 11 horizontally and stably placed, which facilitates the subsequent assembly.

[0051] S4: Finally, the lifting device used to prevent misalignment of the bridge tower is used to contact the surface of the steel shell segment 11 and provide side support, which prevents the misalignment of the steel shell segment 11. Then, the steel shell segment 11 in a stable state on the lifting device is assembled with the steel shell segment 11 already installed on the main body of the cable tower 3 and fixed with high-strength bolts to complete the assembly.

[0052] like Figures 1 to 12 As shown, a lifting device for anti-misalignment bridge tower hoisting based on vision technology also includes a foundation 1, a tower base 2 installed on top of the foundation 1, a main tower body 3 installed on top of the tower base 2, a tower body 4 installed on top of the foundation 1, a driver's cab 5 installed on top of the tower body 4, a lifting boom 9 installed at the end of the tower body 4, a cargo vehicle 10 slidably connected to the bottom of the lifting boom 9, and a steel shell segment 11 provided at the bottom of the cargo vehicle 10; a multi-dimensional adjustment component 6 is installed at the bottom of the cargo vehicle 10, and the multi-dimensional adjustment component 6 is used to adjust the steel shell segment 11. 1. The angle of inclination during hoisting; A visual lifting device assembly 7 is installed at the bottom of the multi-dimensional adjustment component 6. The visual lifting device assembly 7 is used to hoist the steel shell segment 11 and abut against the surface of the steel shell segment 11; A support positioning component 8 is installed at the end of the visual lifting device assembly 7. The support positioning component 8 is used to provide auxiliary support for the side of the steel shell segment 11 and to provide auxiliary positioning when splicing with the main body of the tower 3; The multi-dimensional adjustment component 6 is installed on the top of the visual lifting device assembly 7, and the visual lifting device assembly 7 is installed at one end of the support positioning component 8.

[0053] As an implementation method in this embodiment, such as Figures 3 to 8As shown, the multi-dimensional adjustment component 6 includes a rotating disk 61, which is installed at the bottom of the cargo vehicle 10. Two sets of rail-mounted racks 62 are mounted on the bottom of the rotating disk 61. Sliding frames 63 are slidably connected to the ends of the two sets of rail-mounted racks 62. Gears 65 are rotatably connected inside the sliding frames 63. A connecting platform 64 is installed at the bottom of the two sets of sliding frames 63. A drive motor 66 is installed on the top of the connecting platform 64. The output end of the drive motor 66 is connected to the end of the gear 65. A support frame 67 is installed at the bottom of the connecting platform 64 to support... A hydraulic cylinder 68 is installed on one side of the frame 67. A toggle plate 69 is installed at the output end of the hydraulic cylinder 68. A connecting roller 610 is rotatably connected to one end of the toggle plate 69. A tilting plate 611 is rotatably connected to the end of the connecting roller 610. The tilting plate 611 is acute-angled. A rotating shaft 612 is rotatably connected to one end of the tilting plate 611. The rotating shaft 612 is installed on one side of the support frame 67. A connecting block 613 is installed at the bottom of the tilting plate 611. A gap is left between the connecting block 613 and the support frame 67. A drive platform 614 is installed at the bottom of the connecting block 613. When the rotation... The rotating disk 61 begins to rotate, and subsequently, the two sets of tracked racks 62 mounted on the bottom of the rotating disk 61 rotate together with the rotating disk 61. At this time, as the two sets of tracked racks 62 rotate, the sliding frame 63, which is slidably connected to the two sets of tracked racks 62, is also driven to rotate. As the sliding frame 63 moves, the gear 65 installed inside the sliding frame 63 and the connecting platform 64, which is connected to the bottom of the two sets of sliding frame 63, rotate together with the two sets of sliding frame 63. At this time, as the connecting platform 64 rotates, the gear 65 installed inside the sliding frame 63 and the connecting platform 64, which is connected to the bottom of the two sets of sliding frame 63, rotate together. The drive motor 66 on the connecting platform 64 rotates together. As the connecting platform 64 rotates, the support frame 67 installed at the bottom of the connecting platform 64 drives the hydraulic cylinder 68 installed on one side to move together. At the same time, the actuating plate 69 installed at the output end of the hydraulic cylinder 68 drives the connecting roller 610 and the tilting plate 611 installed at one end to rotate together on the rotating shaft 612 on one side of the support frame 67. While the tilting plate 611 rotates, the connecting block 613 installed at the bottom of the tilting plate 611 drives the drive platform 614 to move together.

[0054] As an implementation method in this embodiment, such as Figures 4 to 10As shown, the visual lifting device assembly 7 includes a bracket 71, which is installed at both ends of the drive platform 614. A servo motor 72 is installed at the bottom of the bracket 71, and a threaded rod 73 is installed at the output end of the servo motor 72. A first sliding plate 74 is threadedly connected to the bottom of the threaded rod 73. The bottom of the first sliding plate 74 is made of rubber, and a first sliding groove 75 is slidably connected to both ends of the first sliding plate 74. The first sliding groove 75 is installed at the bottom of the bracket 71. Support plates 76 are installed at the bottom of both ends of the two sets of brackets 71. Cylinders 77 are installed at the top ends of the support plates 76. Hooks 78 are installed at the output ends of the two sets of cylinders 77. Elastic top frames 79 are installed on the inner walls of both ends of the support plates 76. Two viewing lenses are installed on one side of the support plate 76. 710. Two second sliding grooves 711 are installed at the bottom of the support plate 76. The inner walls of the second sliding grooves 711 are slidably connected to a second sliding plate 712. Multiple springs 713 are installed at the bottom of the second sliding plate 712. The bottoms of the multiple springs 713 are connected to a push block 714. The bottom of the push block 714 is made of rubber. When the drive platform 614 moves, the bracket 71 on the visible lifting device assembly 7 drives the cylinder 77 on the support plate 76 to rotate to the same position as the hanger on the steel shell section 11. At this time, the hanger on the steel shell section 11 is connected to the hook 78 installed at the output end of the cylinder 77. Corresponding to the hangers at different distances, the cylinder 77 on the support plate 76 is moved. Then, the cylinder 77 on the support plate 76... During movement, the elastic top frame 79 constantly pushes one end of the cylinder 77 to maintain the stability of the cylinder 77 on the support plate 76. At this time, after the steel shell section 11 is connected to multiple hooks 78, multiple cylinders 77 start outputting, driving the steel shell section 11 to move upward. As the steel shell section 11 moves upward, it gradually comes into contact with the jacking block 714. When the steel shell section 11 is fully in contact with the jacking block 714, the jacking block 714 is pushed upward. As the jacking block 714 moves upward, multiple springs 713 installed on the top of the jacking block 714 begin to contract, and during the contraction process, the multiple springs 713 push the second sliding plate 712 upward within the second sliding groove 711. Until the second sliding plate 712 gradually comes into contact with the support plate 76, the multiple cylinders 77 stop outputting. At this time, the long strip-shaped elastic abutting block 714 covers multiple abutting points on the surface of the steel shell segment 11, realizing the clamping and fixing of the steel shell segment 11. As the abutting block 714 pushes the two ends of the steel shell segment 11, the servo motor 72 on the bracket 71 drives the threaded rod 73 to rotate. The rotation of the threaded rod 73 drives the first sliding plate 74 to slide downward in the first sliding groove 75. Then, during the sliding process, the first sliding plate 74 gradually comes into contact with the other two ends of the steel shell segment 11, realizing the same horizontal contact on the surface of the steel shell segment 11. Then, the viewing lens 710 observes the dynamic performance of the steel shell segment 11 at all times.

[0055] As an implementation method in this embodiment, such as Figures 5 to 12 As shown, the support and positioning assembly 8 includes a base 81, which is mounted at both ends of the bracket 71. A telescopic rod 82 is mounted at one end of the base 81, and a connecting block 83 is mounted at one end of the telescopic rod 82. A telescopic frame 84 is sleeved on the surface of the telescopic rod 82, and both ends of the telescopic frame 84 are connected to the surface of the base 81 and the surface of the connecting block 83, respectively. A long rod 85 is mounted at the bottom of the connecting block 83, and a fixing block 86 is mounted at the bottom of the long rod 85. A torsion spring frame 87 is mounted at the end of the fixing block 86, and a short flipping arm 88 is mounted at the end of the torsion spring frame 87. A first long roller 89 is rotatably connected to one end of the steel shell segment 11. A long tilting arm 810 is mounted on the other end of the torsion spring frame 87. A second long roller 811 is rotatably connected to the end of the long tilting arm 810. When the second long roller 811 contacts the side wall of the steel shell segment 11, the long tilting arm 810 connected to the end of the second long roller 811 tilts on the torsion spring frame 87. At the same time, the first long roller 89 contacts the side wall of the steel shell segment 11. Subsequently, the short tilting arm 88 mounted on the end of the first long roller 89 tilts at one end of the torsion spring frame 87. Then, the first long roller 89 tilts against the steel shell segment 11. The sidewalls of the shell segment 11 provide auxiliary support, while the second long roller 811 continues to roll downwards along the sidewalls until it reaches below the steel shell segment 11. Then, after the steel shell segment 11 is hoisted above the main tower body 3, the rotating disk 61 in the multi-dimensional adjustment assembly 6 rotates, and the drive motor 66 drives the gear 65 to rotate at the bottom of the track rack 62. Subsequently, the sliding frame 63 moves the connecting platform 64, gradually moving the steel shell segment 11 above the steel shell segment 11 already installed on the main tower body 3 before it descends. Then, the second long roller 811... 1. Contacts the side wall of the steel shell segment 11 installed on the main body 3 of the tower, which serves as an auxiliary positioning tool. At the same time, the torsion spring frame 87 is pushed by the long flipping arm 810, which drives the fixed block 86 to move outward. As the fixed block 86 moves, the long rod 85 installed on the top of the fixed block 86 drives the adapter block 83 to move together. At this time, the telescopic rod 82 connected to one end of the adapter block 83 is stretched, and the telescopic frame 84 sleeved on the telescopic rod 82 is stretched together at one end of the base 81 to prevent the second long roller 811 from being mechanically damaged, and then assists in the positioning and installation of the steel shell segment 11.

[0056] The working principle of the technical solution provided by this invention is as follows:

[0057] When using this device, the various sections of the steel shell segment 11 are first assembled and spliced ​​in the assembly area, and then welded and fixed. Then, temporary matching parts are installed on the steel shell segment 11. After the temporary matching parts are installed, the matching parts are fixed with bolts. Then, the cargo vehicle 10 starts to drive and lift the assembled steel shell segment 11.

[0058] When the cargo vehicle 10 is driven, the multi-dimensional adjustment component 6 starts operating. At this time, the turntable 61 begins to rotate, and subsequently, the two sets of track racks 62 installed at the bottom of the turntable 61 rotate together with the turntable 61. As the two sets of track racks 62 rotate, the sliding frame 63, which is slidably connected to the two sets of track racks 62, is also driven to rotate. As the sliding frame 63 moves, the gear 65 installed inside the sliding frame 63 and the connecting platform 64, which is connected to the bottom of the two sets of sliding frame 63, rotate together with the two sets of sliding frame 63. At this time, as the connecting platform 64 rotates, it is assumed that... The drive motor 66, mounted on the connecting platform 64, rotates together. As the connecting platform 64 rotates, the support frame 67 mounted at the bottom of the connecting platform 64 moves along with the hydraulic cylinder 68 mounted on one side. At the same time, the actuating plate 69 mounted at the output end of the hydraulic cylinder 68 drives the connecting roller 610 and the tilting plate 611 mounted at one end to rotate together on the rotating shaft 612 on one side of the support frame 67. While the tilting plate 611 rotates, the connecting block 613 mounted at the bottom of the tilting plate 611 drives the drive platform 614 to move together. As the drive platform 614 moves, the visual lifting device assembly 7 begins to operate.

[0059] When the drive platform 614 moves, the bracket 71 on the visible lifting assembly 7 drives the cylinder 77 on the support plate 76 to rotate above the same position as the hanger on the steel shell section 11. At this time, the hanger on the steel shell section 11 is connected to the hook 78 installed at the output end of the cylinder 77. Corresponding to the hangers at different distances, the cylinder 77 on the support plate 76 is moved. Then, when the cylinder 77 moves on the support plate 76, the elastic top frame 79 pushes one end of the cylinder 77 at all times to maintain the stability of the cylinder 77 on the support plate 76. At this time, when the steel shell section... After the steel shell segment 11 is connected to multiple hooks 78, multiple cylinders 77 begin to output, driving the steel shell segment 11 to move upward. As the steel shell segment 11 moves upward, it gradually comes into contact with the jacking block 714. When the steel shell segment 11 is fully in contact with the jacking block 714, the jacking block 714 is pushed upward. As the jacking block 714 moves upward, multiple springs 713 installed on the top of the jacking block 714 begin to contract, and during the contraction process, the multiple springs 713 push the second sliding plate 712 in the second slide groove. The first sliding plate 711 moves upward until the second sliding plate 712 gradually contacts the support plate 76. At this time, the multiple cylinders 77 stop outputting. At this time, the long strip-shaped elastic abutting block 714 covers multiple abutting points on the surface of the steel shell segment 11, realizing the clamping and fixing of the steel shell segment 11. As the abutting block 714 pushes against the two ends of the steel shell segment 11, the servo motor 72 on the bracket 71 drives the threaded rod 73 to rotate. The rotation of the threaded rod 73 drives the first sliding plate 74 to slide downward in the first sliding groove 75. Then the first sliding plate 74 slides... During the process, it gradually comes into contact with the other two ends of the steel shell segment 11, achieving top contact with the same horizontal plane of the surface of the steel shell segment 11. Then, the viewing lens 710 observes the dynamic performance of the steel shell segment 11 at all times. When the steel shell segment 11 tilts at an angle, the multi-dimensional adjustment component 6 operates. The hydraulic cylinder 68 drives the actuating plate 69 to drive the flipping plate 611 connected to one end of the connecting roller 610 to flip on the rotating shaft 612. When the flipping plate 611 flips, the connecting block 613 drives the drive platform 614 to tilt at an angle to adjust the tilt angle.

[0060] When the visual lifting assembly 7 lifts the steel shell segment 11, the support and positioning assembly 8 starts operating. First, the second long roller 811 contacts the side wall of the steel shell segment 11. Then, the long tilting arm 810 connected to the end of the second long roller 811 tilts on the torsion spring frame 87. At the same time, the first long roller 89 contacts the side wall of the steel shell segment 11. Subsequently, the short tilting arm 88 installed at the end of the first long roller 89 tilts at one end of the torsion spring frame 87. Then, the first long roller 89 provides auxiliary support to the side wall of the steel shell segment 11. Meanwhile, the second long roller 811 continues to roll down along the side wall until it rolls to the bottom of the steel shell segment 11. After the steel shell segment 11 is lifted above the main tower 3, the rotating disk 61 in the multi-dimensional adjustment assembly 6 rotates, and then the drive motor 66 drives the gear 65. The bottom of the track rack 62 rotates, and then the sliding frame 63 drives the connecting platform 64 to move, gradually moving the steel shell segment 11 to above the steel shell segment 11 already installed on the main body of the tower 3 and then descending. Then the second long roller 811 contacts the side wall of the steel shell segment 11 installed on the main body of the tower 3, which plays a role in auxiliary positioning. At the same time, the torsion spring frame 87 is pushed by the long flipping arm 810, which drives the fixing block 86 to move outward. As the fixing block 86 moves, the long rod 85 installed on the top of the fixing block 86 drives the adapter block 83 to move together. At this time, the telescopic rod 82 connected to one end of the adapter block 83 is stretched, and the telescopic frame 84 sleeved on the telescopic rod 82 is stretched together at one end of the base 81 to prevent the second long roller 811 from being mechanically damaged, and then assists in the positioning and installation of the steel shell segment 11.

[0061] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0062] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for preventing misalignment during bridge tower hoisting based on vision technology, characterized in that, The following steps are involved: S1: First, assemble and splice the various sections of the steel shell segment in the assembly area. After the splicing is completed, measure the steel shell segment. After the measurement is correct, use a leveling plate to adjust it. Then, weld and fix the connection points of the various sections of the steel shell segment. S2: Subsequently, after the various segments of the steel shell section are welded and fixed, temporary matching parts are installed at the edges of the steel shell section to pre-assemble the segments with the steel shell section on the main body of the tower. After verifying the assembly accuracy, the temporary matching parts of the steel shell section are installed. S3: Then the steel shell segments are assembled and wait for the lifting equipment of the bridge tower hoisting anti-misalignment platform to be used for hoisting. The steel shell segments are lifted onto the main body of the tower by the lifting equipment. The angle is adjusted to keep the steel shell segments horizontal and stable, which facilitates the subsequent assembly. S4: Finally, the anti-misalignment lifting device of the bridge tower is used to contact the surface of the steel shell segment and provide side support to prevent the misalignment of the steel shell segment. Then, the steel shell segment in a stable state on the lifting device is assembled with the steel shell segment already installed on the main body of the cable tower and fixed with high-strength bolts to complete the assembly.

2. The lifting device for anti-misalignment of bridge tower hoisting based on vision technology according to claim 1, characterized in that, The lifting device for the bridge tower hoisting anti-misalignment platform based on vision technology also includes a foundation, a tower base is installed on the top of the foundation, a main tower body is installed on the top of the tower base, a tower body is also installed on the top of the foundation, a driver's cab is installed on the top of the tower body, a lifting boom is installed at the end of the tower body, a cargo vehicle is slidably connected to the bottom of the lifting boom, and a steel shell segment is provided at the bottom of the cargo vehicle. The bottom of the cargo vehicle is equipped with a multi-dimensional adjustment component, which is used to adjust the angle of inclination when the steel shell segment is hoisted. The bottom of the multi-dimensional adjustment component is equipped with a visual lifting device assembly, which is used to lift the steel shell segment and abut against the surface of the steel shell segment; The end of the visual lifting device assembly is equipped with a support and positioning component, which is used to provide auxiliary support for the side of the steel shell segment and to provide auxiliary positioning when splicing it with the main body of the cable tower. The multi-dimensional adjustment component is mounted on top of the visual lifting device assembly, which is mounted at one end of the support and positioning component.

3. The lifting device for anti-misalignment of bridge tower hoisting based on vision technology according to claim 2, characterized in that, The multi-dimensional adjustment component includes a rotating disk, which is installed at the bottom of the cargo vehicle. Two sets of rail racks are installed at the bottom of the rotating disk. The ends of the two sets of rail racks are slidably connected to sliding frames. Gears are rotatably connected inside the sliding frames. A connecting platform is installed at the bottom of the two sets of sliding frames.

4. The lifting device for anti-misalignment of bridge tower hoisting based on vision technology according to claim , characterized in that, A drive motor is installed on the top of the connecting platform, and the output end of the drive motor is connected to the end of the gear. A support frame is installed at the bottom of the connecting platform, and a hydraulic cylinder is installed on one side of the support frame. A toggle plate is installed at the output end of the hydraulic cylinder, and a connecting roller is rotatably connected to one end of the toggle plate.

5. The lifting device for anti-misalignment of bridge tower hoisting based on vision technology according to claim 4, characterized in that, The end of the connecting roller is rotatably connected to a flipping plate, which is acute-angled. One end of the flipping plate is rotatably connected to a rotating shaft, which is installed on one side of the support frame. A connecting block is installed at the bottom of the flipping plate, and a gap is left between the connecting block and the support frame. A drive platform is installed at the bottom of the connecting block.

6. The lifting device for anti-misalignment of bridge tower hoisting based on vision technology according to claim 5, characterized in that, The visual hoisting assembly includes a bracket, which is installed at both ends of a drive platform. A servo motor is installed at the bottom of the bracket, and a threaded rod is installed at the output end of the servo motor. A first sliding plate is threadedly connected to the bottom of the threaded rod. The bottom of the first sliding plate is made of rubber, and a first sliding groove is slidably connected to both ends of the first sliding plate. The first sliding groove is installed at the bottom of the bracket.

7. The lifting device for anti-misalignment of bridge tower hoisting based on vision technology according to claim 6, characterized in that, Support plates are installed at the bottom of both ends of the two sets of brackets, cylinders are installed at the top of both ends of the support plates, hooks are installed at the output ends of the two sets of cylinders, elastic top frames are installed on the inner walls of both ends of the support plates, and two viewing lenses are installed on one side of the support plates.

8. The lifting device for anti-misalignment of bridge tower hoisting based on vision technology according to claim 7, characterized in that, The bottom of the support plate is equipped with two second sliding grooves, and the inner walls of the second sliding grooves are slidably connected to a second sliding plate. The bottom of the second sliding plate is equipped with multiple springs, and the bottoms of the multiple springs are connected to a push block. The bottom of the push block is made of rubber.

9. The lifting device for anti-misalignment of bridge tower hoisting based on vision technology according to claim 8, characterized in that, The support and positioning assembly includes a base, which is installed at both ends of a bracket. A telescopic rod is installed at one end of the base, and a transition block is installed at one end of the telescopic rod. A telescopic frame is sleeved on the surface of the telescopic rod, and both ends of the telescopic frame are connected to the surface of the base and the surface of the transition block, respectively. A long rod is installed at the bottom of the transition block.

10. The lifting device for anti-misalignment of bridge tower hoisting based on vision technology according to claim 9, characterized in that, A fixing block is installed at the bottom of the long rod, a torsion spring frame is installed at the end of the fixing block, a short flipping arm is installed at the end of the torsion spring frame, a first long rotating roller is rotatably connected to the end of the short flipping arm, a long flipping arm is installed at the other end of the torsion spring frame, and a second long rotating roller is rotatably connected to the end of the long flipping arm.

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